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Ltd.","holder_sec_code":"8331","doc_id":"S100YDSE","period_end":"2026-03-31","holder_table":"reporting","shares":996995,"book_value_yen":1909000000,"prior_shares":996995,"prior_book_value_yen":1257000000,"purpose_ja":"千葉県市原市に事業拠点を持つ化学メーカーであり、発行会社との連携強化を通じて地域経済の発展や地域雇用の維持・創出に貢献できること、また発行会社及びその従業員との銀行取引（預金・為替・融資等）拡大が当行の営業基盤を強固にし、中長期的な企業価値向上にも資すると考え保有しております。","reciprocal":"有","pct_outstanding":4.834673462722517,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.15183329356557704,"pct_of_holder_assets":0.00899971577115566,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":1257300000000,"holder_total_assets_yen":21211781000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社東京きらぼしフィナンシャルグループ","holder_name_en":"Tokyo Kiraboshi Financial Group, Inc.","holder_sec_code":"7173","doc_id":"S100YBHI","period_end":"2026-03-31","holder_table":"largest","shares":763000,"book_value_yen":1461000000,"prior_shares":763000,"prior_book_value_yen":962000000,"purpose_ja":"保有に関する経済合理性を有し、取引関係の維持により当社グループの中長期的な企業価値の向上に資するため","reciprocal":"有","pct_outstanding":3.699974274752913,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.3450311732476856,"pct_of_holder_assets":0.019966225510112463,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":423440000000,"holder_total_assets_yen":7317357000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"ＭＳ＆ＡＤインシュアランスグループホールディングス株式会社","holder_name_en":"MS&AD Insurance Group Holdings, Inc.","holder_sec_code":"8725","doc_id":"S100YNCJ","period_end":"2026-03-31","holder_table":"second_largest","shares":721990,"book_value_yen":1382000000,"prior_shares":null,"prior_book_value_yen":null,"purpose_ja":"保険取引先との関係の維持・強化を目的として安定保有していたが、保有方針については③a.(a)に記載のとおり","reciprocal":"有","pct_outstanding":3.50110671904175,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.028641655993401228,"pct_of_holder_assets":0.004825281682801275,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":4825140000000,"holder_total_assets_yen":28640815000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社めぶきフィナンシャルグループ","holder_name_en":"Mebuki Financial Group,Inc.","holder_sec_code":"7167","doc_id":"S100YAVM","period_end":"2026-03-31","holder_table":"largest","shares":565000,"book_value_yen":1081000000,"prior_shares":565000,"prior_book_value_yen":712000000,"purpose_ja":"（保有目的）地域経済の成長・活性化において、先進的な知見や技術等の活用が期待できる中央有力企業との関係維持・強化等を通じた当社グループの企業価値向上を目的に保有しております。（定量的な保有効果）上記②aイに記載の検証方法に従って検証した結果、収益性、信用力、地域性（当社の主要営業地盤との関係等）、取引関係強化等を加味し、総合的な判断による合理性が認められるため保有しております。","reciprocal":"有","pct_outstanding":2.739823676586364,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.10035351172307258,"pct_of_holder_assets":0.005105417665198517,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":1077192000000,"holder_total_assets_yen":21173586000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社星医療酸器","holder_name_en":"HOSHI IRYO-SANKI CO., LTD.","holder_sec_code":"7634","doc_id":"S100YHH0","period_end":"2026-03-31","holder_table":"reporting","shares":269420,"book_value_yen":515940000,"prior_shares":259387,"prior_book_value_yen":327087000,"purpose_ja":"企業間取引の強化目的で保有しております。主に、医療用ガス及び在宅医療関連事業の取引を行っております。定量的な保有効果を一義的に示すことは困難ですが、当社グループと相互協力体制を確立しており、当社グループの事業運営への貢献度で保有効果を検証しております。本銘柄は、同社との更なる取引拡大が見込めることから、取引先持株会への加入を通じ、当期に追加取得しております。株式数の増加は、取引先持株会における買付及び株式分割による増加であります。","reciprocal":"有","pct_outstanding":1.3064837078688463,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":2.538333290038894,"pct_of_holder_assets":1.9291908365491812,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":20325936000,"holder_total_assets_yen":26743855000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"神鋼商事株式会社","holder_name_en":"Shinsho Corporation","holder_sec_code":"8075","doc_id":"S100YEV4","period_end":"2026-03-31","holder_table":"reporting","shares":246100,"book_value_yen":471000000,"prior_shares":49220,"prior_book_value_yen":310000000,"purpose_ja":"取引先として、事業上の関係を維持・強化し、製品販売の維持拡大を通じて企業基盤の安定化を図り、中長期的に企業価値の向上を図るため。主として取引高をもとに保有の合理性を検討しております。株式の増加は、株式の分割のためです。","reciprocal":"有","pct_outstanding":1.1933993040847861,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.4664197579766691,"pct_of_holder_assets":0.12277678867012666,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":100982000000,"holder_total_assets_yen":383623000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社ダイヘン","holder_name_en":"DAIHEN Corporation","holder_sec_code":"6622","doc_id":"S100YEET","period_end":"2026-03-31","holder_table":"reporting","shares":161135,"book_value_yen":308000000,"prior_shares":31229,"prior_book_value_yen":196000000,"purpose_ja":"主にファクトリーオートメーション・マテリアルプロセシングにおける販売先で、産業用ロボット・溶接機等の販売を行っております。同社との良好な取引関係の維持・強化が当社事業の発展に資すると判断し、保有しております。なお、同社は2025年４月に１株を５株とする株式分割を行ったことと、同社の取引先持株会に加入し、継続的に買付を行っているため、株式数が増加しております。","reciprocal":"有","pct_outstanding":0.7813831648260952,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.18038489920700923,"pct_of_holder_assets":0.09619739205122199,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":170746000000,"holder_total_assets_yen":320175000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"高圧ガス工業株式会社","holder_name_en":"KOATSU GAS KOGYO CO., LTD.","holder_sec_code":"4097","doc_id":"S100YHRU","period_end":"2026-03-31","holder_table":"reporting","shares":113636,"book_value_yen":217000000,"prior_shares":109034,"prior_book_value_yen":137000000,"purpose_ja":"（保有目的）主にガス事業における取引関係の維持・強化のため（定量的な保有効果）（注）２（株式数が増加した理由）取引先持株会を通じた株式の取得及び株式分割","reciprocal":"無","pct_outstanding":0.5510488554204744,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.25529111422218564,"pct_of_holder_assets":0.17587797148669568,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":85001000000,"holder_total_assets_yen":123381000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"エア・ウォーター株式会社","holder_name_en":"AIR WATER INC.","holder_sec_code":"4088","doc_id":"S100YZGY","period_end":"2026-03-31","holder_table":"reporting","shares":66500,"book_value_yen":127000000,"prior_shares":13300,"prior_book_value_yen":83000000,"purpose_ja":"デジタル＆インダストリーグループにおける取引先であり、産業ガスの仕入、販売を行っております。また、産業ガスの製造工場を共同運営しております。相互の事業拡大・企業価値向上を目的として関係強化を図るため、継続して保有しております。","reciprocal":"有","pct_outstanding":0.3224748221114924,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.032544992811913004,"pct_of_holder_assets":0.010441614520257143,"holder_equity_basis":"ifrs_consolidated_excl_nci","holder_equity_yen":390229000000,"holder_total_assets_yen":1216287000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社名村造船所","holder_name_en":"Namura Shipbuilding Co.,Ltd.","holder_sec_code":"7014","doc_id":"S100YEFT","period_end":"2026-03-31","holder_table":"reporting","shares":56000,"book_value_yen":107000000,"prior_shares":11200,"prior_book_value_yen":71000000,"purpose_ja":"舶用機器の調達等の取引をおこなっており、同社との良好な取引関係の維持・強化を図ることが当社の中長期的な企業価値向上に資するため保有しております。なお、同社は株式分割をおこなったため、保有株式数が増加しております。","reciprocal":"有","pct_outstanding":0.2715577449359936,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.07785158722651901,"pct_of_holder_assets":0.04020319521469258,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":137441000000,"holder_total_assets_yen":266148000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社　神戸製鋼所","holder_name_en":"Kobe Steel, Ltd.","holder_sec_code":"5406","doc_id":"S100YCDA","period_end":"2026-03-31","holder_table":"reporting","shares":32000,"book_value_yen":60000000,"prior_shares":6000,"prior_book_value_yen":39000000,"purpose_ja":"主に素材系事業の取引先として、事業上の関係を維持・強化し、製品販売の維持拡大を通じて企業基盤の安定化を図り、中長期的に企業価値の向上を図るため。主として取引高をもとに保有の合理性を検討しております。なお、期中に１株につき５株の割合をもって普通株式が分割されたため、株式数が増加しております。","reciprocal":"無","pct_outstanding":0.1551758542491392,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.004509742170523874,"pct_of_holder_assets":0.002094106347096731,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":1330453000000,"holder_total_assets_yen":2865184000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"大丸エナウィン株式会社","holder_name_en":"DAIMARU ENAWIN Co.,Ltd.","holder_sec_code":"9818","doc_id":"S100YNGJ","period_end":"2026-03-31","holder_table":"reporting","shares":5000,"book_value_yen":9575000,"prior_shares":5000,"prior_book_value_yen":6305000,"purpose_ja":"当社医療・産業ガス事業の仕入先として商品やサービスのノウハウ提供を受けております。商材の安定的な調達等、良好な関係を構築しており、継続して良好な関係の維持・強化を図っております。","reciprocal":"有","pct_outstanding":0.024246227226428,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.06002020565335802,"pct_of_holder_assets":0.04132723482903106,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":15952961000,"holder_total_assets_yen":23168741000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"新東工業株式会社","holder_name_en":"Sintokogio,Ltd.","holder_sec_code":"6339","doc_id":"S100YE4V","period_end":"2026-03-31","holder_table":"reporting","shares":550,"book_value_yen":1000000,"prior_shares":550,"prior_book_value_yen":0,"purpose_ja":"溶接機に付属する集塵装置等の環境対応製品の取引を行っており、事業活動の維持・推進のため","reciprocal":"無","pct_outstanding":0.00266708499490708,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0008415383320710258,"pct_of_holder_assets":0.0004398311048557354,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":118830000000,"holder_total_assets_yen":227360000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"名港海運株式会社","holder_name_en":"MEIKO TRANS CO.,LTD.","holder_sec_code":"9357","doc_id":"S100YL49","period_end":"2026-03-31","holder_table":"reporting","shares":1000,"book_value_yen":1000000,"prior_shares":1000,"prior_book_value_yen":1000000,"purpose_ja":"物流関連取引を行っており、同社との関係維持、強化を図るため保有しております。同社の当社利益への貢献や取引状況等について、定量的および定性的に検証を行った結果、引き続き保有することが望ましいと判断いたしました。","reciprocal":"無","pct_outstanding":0.0048492454452856,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0007041285988928056,"pct_of_holder_assets":0.0005564650234410334,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":142019512000,"holder_total_assets_yen":179705814000,"implausible":false,"reciprocal_held_both_ways":false}],"reclassified":[],"reclassified_note":"As filed, from the annual report's 保有目的を変更した投資株式 table. direction=to_pure means the filer moved the holding from a policy shareholding to 純投資目的 (pure investment); the shares are not necessarily sold, and the position leaves the named policy table in the year of the change. direction=to_policy is the reverse. fy_of_change_ja is the fiscal year the filer states the change took effect, verbatim — some filers list more than one. A filing repeats these rows for several years after the change, so this is a standing disclosure, not a one-year event.","implausible_note":"A row is flagged implausible when its two filed numbers are mutually impossible — book value ÷ shares of ¥1,000,000 or more, which no listed Japanese share reaches. It is a filer tagging error (a value entered at the wrong scale, or a share count in thousands), not an extraction error: the values match the filing's XBRL exactly. Flagged rows are still returned, exactly as filed, but are excluded from the yen aggregates here and counted in excluded_positions / excluded_yen so the exclusion is visible.","notes":[{"holder_table":"reporting","note_no":"1","text_ja":"（注）１．定量的な保有効果の記載は困難でありますが、当社の想定資本コストと比較した保有に伴う便益、取引関係　　　　　の維持・強化等の観点から、保有の適否を検証しております。2026年５月25日の取締役会において、現状保有　　　　　する特定投資株式の継続保有は妥当であるとの結論に至っております。"},{"holder_table":"reporting","note_no":"2","text_ja":"２．当社の株式の保有の有無については、銘柄が持株会社の場合はその主要な子会社の保有分（実質所有株式数）を勘案し記載しております。"},{"holder_table":"reporting","note_no":"3","text_ja":"３．日本製鉄㈱は、2025年９月30日付で株式分割を行い、普通株式１株につき５株の割合で割当を受けておりま　　　　　す。"}],"notes_note":"The filing's own numbered footnotes to the named policy table, verbatim. The XBRL numbers them (注)1, (注)2 … and gives no link back to a row, so a note is tied to a position only where it names that issuer.","flows":[{"holder_table":"reporting","share_class":"listed","issues_increased":3,"acquisition_cost_yen":18000000,"issues_decreased":2,"sale_proceeds_yen":24000000,"entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":null,"sale_proceeds_yen":null,"entity_scope":"parent_only","share_scope":"unlisted"}],"flows_note":"The filer's own tally, as filed, of how many issues increased or decreased during the year and the yen involved — acquisition cost for increases, sale proceeds for decreases. Read against the reclassification table this separates what was actually sold from what merely changed category. Counts are as filed and are not corrected for filer tagging errors.","no_reduction_measure":"This product holds sale proceeds (売却価額), as filed, for one fiscal year. It does NOT hold a book-value-reduction measure. The two are different measures and must never be presented as equivalent.","scale":{"policy_total_yen":10932000000,"listed_yen":10846000000,"unlisted_yen":86000000,"listed_issues":17,"unlisted_issues":10,"equity_yen":50079000000,"equity_basis":"jgaap_consolidated","total_assets_yen":79112000000,"assets_basis":"jgaap_consolidated","pct_of_equity":21.829509375187204,"pct_of_assets":13.818384063100414,"equity_basis_label":"Consolidated net assets (Japanese GAAP)","assets_basis_label":"Consolidated net assets (Japanese GAAP)","equity_calc":"total policy shareholdings ÷ shareholders' equity × 100, both as filed in this annual securities report","assets_calc":"total policy shareholdings ÷ total assets × 100, both as filed in this annual securities report"},"scale_entities":[{"holder_table":"reporting","share_class":"listed","book_value_yen":10846000000,"issue_count":17,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":86000000,"issue_count":10,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"unlisted"}],"scale_history":[{"year":"2022","period_end":"2022-03-31","policy_total_yen":4507000000,"equity_yen":33693000000,"equity_basis":"jgaap_consolidated","pct_of_equity":13.376665776274004,"pct_of_assets":7.5198131308918},{"year":"2023","period_end":"2023-03-31","policy_total_yen":4910000000,"equity_yen":36079000000,"equity_basis":"jgaap_consolidated","pct_of_equity":13.609024640372516,"pct_of_assets":7.561524008993747},{"year":"2024","period_end":"2024-03-31","policy_total_yen":8559000000,"equity_yen":42384000000,"equity_basis":"jgaap_consolidated","pct_of_equity":20.193941109852776,"pct_of_assets":11.648701616854483},{"year":"2025","period_end":"2025-03-31","policy_total_yen":8398000000,"equity_yen":45571000000,"equity_basis":"jgaap_consolidated","pct_of_equity":18.428386473853987,"pct_of_assets":11.23703753261524},{"year":"2026","period_end":"2026-03-31","policy_total_yen":10932000000,"equity_yen":50079000000,"equity_basis":"jgaap_consolidated","pct_of_equity":21.829509375187204,"pct_of_assets":13.818384063100414}],"scale_note":"The policy total is Official (as filed) — the filing's own total carrying amount for the whole policy bucket, listed and unlisted, summed across the entities the filing discloses. It is a floor: holdings at group companies the filing does not name are disclosed nowhere and are not included. The percentages are calculated, not filed, and carry their formula. equity_basis names which figure the denominator is, because filers report under Japanese, IFRS or US accounting standards and an adopter of the latter two stops tagging the Japanese consolidated figure — a parent-only denominator is a different measure and is labelled as one, never silently mixed with a group figure. Percentages are null where equity or total assets is missing or not positive; missing is never shown as zero.","scale_reference":"ISS's Japan proxy voting guidelines recommend a vote against the top executive at a company that allocates 20 percent or more of its net assets to cross-shareholdings, a policy effective from February 2022. ISS counts unilateral holdings, not only mutual ones.","ownership_calc":"shares held ÷ (issuer's issued shares − treasury shares) × 100, both as filed, the denominator taken from the issuer's own annual securities report nearest the holding's fiscal year end","ownership_note":"Derived, not filed. The denominator is the issuer's own reported issued shares less treasury shares, from its annual report nearest this holding's fiscal year end on either side — pct_basis_period_end gives that date, and it can fall after the holding's date where that report is the closer one. For a single-class listed stock this equals the stake's share of market capitalisation. It is null where the issuer files no annual report we hold; where the issuer's share count moves by half or more across the window, because a split or issue makes the share base indeterminate; and where the result would exceed 100%, which is a data fault rather than a stake. It is less exact where the issuer has more than one share class (pct_share_classes > 1), because treasury shares are reported across all classes.","holder_share_calc":"this position's book value ÷ the holder's shareholders' equity (or total assets) × 100, both as filed in the holder's own annual securities report","holder_share_note":"The mirror of pct_outstanding. That sizes a stake against the ISSUER — how much of the issuer this holder owns. pct_of_holder_equity and pct_of_holder_assets size the same position against the HOLDER: how much of its own capital is committed to this one name. Calculated, not filed. Null where the holder's filing gives no usable denominator, never zero. holder_equity_basis says which accounting figure the denominator is, and a parent_only basis is not comparable with a consolidated one. A position CAN legitimately exceed 100% of equity — a holder whose book equity is smaller than one long-held stake is a real and commercially interesting case, not an error — so no ceiling is imposed. Extreme values are worth checking against the filing: where the position's own two filed numbers are mutually impossible the row is marked `implausible`, but that test catches only scale errors visible per share, so it does not catch every bad figure. The book value and share count are returned alongside so the reader can check.","action_calc":"keyword match over the filing's own stated purpose and table footnotes: 株式分割、株式併合、株式交換、株式移転、会社分割、合併、持株会社、商号変更、公開買付、上場廃止","ratio_calc":"current shares ÷ prior shares where that ratio is an exact whole number (or its exact reciprocal) — the signature of a split or a consolidation rather than a trade","history":[{"year":"2022","period_end":"2022-03-31","named_holdings":20,"book_value_yen":4407000000},{"year":"2023","period_end":"2023-03-31","named_holdings":20,"book_value_yen":4809000000},{"year":"2024","period_end":"2024-03-31","named_holdings":20,"book_value_yen":8459000000},{"year":"2025","period_end":"2025-03-31","named_holdings":19,"book_value_yen":8304000000},{"year":"2026","period_end":"2026-03-31","named_holdings":19,"book_value_yen":10836000000}],"history_note":"One point per annual report filed. Each year's book value is as filed; book values are fair-valued at period end, so a change reflects both trading and market moves.","provenance":{"trust":"official","note":"Figures exactly as filed in each company's 有価証券報告書 (annual securities report), EDINET. Raw filings archived with SHA-256; doc_id links to the source filing."}}