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Ltd.","holder_sec_code":"4461","doc_id":"S100YCSC","period_end":"2026-03-31","holder_table":"reporting","shares":200000,"book_value_yen":289000000,"prior_shares":200000,"prior_book_value_yen":236000000,"purpose_ja":"継続的取引関係の維持・円滑化を目的に保有しており、株式の保有によって受取配当金の収入やコア・マテリアルセグメントを中心に当社の業績に貢献しています。","reciprocal":"有","pct_outstanding":0.19459261374697184,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.4960777245652883,"pct_of_holder_assets":0.251297792231507,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":58257000000,"holder_total_assets_yen":115003000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"アマノ株式会社","holder_name_en":"Amano Corporation","holder_sec_code":"6436","doc_id":"S100YJFL","period_end":"2026-03-31","holder_table":"reporting","shares":195600,"book_value_yen":283000000,"prior_shares":195600,"prior_book_value_yen":231000000,"purpose_ja":"当社製品取扱先であると同時に当社グループ会社製品使用ユーザーであり、今後も有力な取引先としてより緊密な関係を築くため。","reciprocal":"有","pct_outstanding":0.19031157624453846,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.20328707295348103,"pct_of_holder_assets":0.1465592244272279,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":139212000000,"holder_total_assets_yen":193096000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社ＴＢＫ","holder_name_en":"TBK Co., Ltd.","holder_sec_code":"7277","doc_id":"S100YLAF","period_end":"2026-03-31","holder_table":"reporting","shares":176000,"book_value_yen":254000000,"prior_shares":176000,"prior_book_value_yen":208000000,"purpose_ja":"（保有目的）当社グループの主力製品であるブレーキ・ポンプ製造に必要なギヤ部品の熱処理や表面処理を行っており、営業取引等の円滑化を図るために保有（定量的な保有効果）（注）１","reciprocal":"有","pct_outstanding":0.17124150009733521,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.7843379446640316,"pct_of_holder_assets":0.449470014687406,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":32384000000,"holder_total_assets_yen":56511000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"戸田建設株式会社","holder_name_en":"TODA CORPORATION","holder_sec_code":"1860","doc_id":"S100YG3E","period_end":"2026-03-31","holder_table":"reporting","shares":145700,"book_value_yen":210000000,"prior_shares":145700,"prior_book_value_yen":172000000,"purpose_ja":"主要取引先であり、保有により取引関係が強化され、主に建築セグメントにおける中長期的な工場等の工事受注量の確保等に資するため、保有継続が適当と判断しております。","reciprocal":"有","pct_outstanding":0.141760719114669,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.05208837164309048,"pct_of_holder_assets":0.02103367491353657,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":403161000000,"holder_total_assets_yen":998399000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"東京製綱株式会社","holder_name_en":"TOKYO ROPE MFG. CO., LTD.","holder_sec_code":"5981","doc_id":"S100YJJW","period_end":"2026-03-31","holder_table":"reporting","shares":143700,"book_value_yen":207000000,"prior_shares":143700,"prior_book_value_yen":170000000,"purpose_ja":"主として鋼索鋼線関連事業における製造工程で必要となる副材料の調達先であり、同事業の安定的な操業継続等を目的とした良好な関係の維持・強化を図るため、継続保有しております。(注)１ ","reciprocal":"有","pct_outstanding":0.13981479297719926,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.5025369619577092,"pct_of_holder_assets":0.23239887280933189,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":41191000000,"holder_total_assets_yen":89071000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"デンヨー株式会社","holder_name_en":"Denyo Co.,Ltd.","holder_sec_code":"6517","doc_id":"S100YHXJ","period_end":"2026-03-31","holder_table":"reporting","shares":114000,"book_value_yen":164000000,"prior_shares":114000,"prior_book_value_yen":134000000,"purpose_ja":"・同社は素材の防錆・塗装等の表面処理　を主たる事業としております。投資先である同社からの配当期待に加え、将来の取引期待から、当社の企業価値の向上を図るために保有しております。・当社の企業価値の向上に資するかどうかについて定量的に保有の効果を示すことは困難であります。同社のＲＯＥ、配当利回り、配当性向及び現在の取引実績並びに将来における取引期待の状況等の定性的情報を総合的に勘案した結果、当社の企業価値の向上に資すると判断いたしました。","reciprocal":"有","pct_outstanding":0.11091778983577395,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.19218825073535442,"pct_of_holder_assets":0.15687474890474642,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":85333000000,"holder_total_assets_yen":104542000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社ＮＩＴＴＡＮ","holder_name_en":"NITTAN Corporation","holder_sec_code":"6493","doc_id":"S100YVDP","period_end":"2026-03-31","holder_table":"reporting","shares":93044,"book_value_yen":134634000,"prior_shares":93044,"prior_book_value_yen":110164000,"purpose_ja":"表面処理技術の競争力向上における関係強化のため保有しております。","reciprocal":"有","pct_outstanding":0.09052837576736625,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.33370719259783443,"pct_of_holder_assets":0.20119070034340228,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":40344950000,"holder_total_assets_yen":66918600000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"オーウエル株式会社","holder_name_en":"Ｏ－ＷＥＬＬ　ＣＯＲＰＯＲＡＴＩＯＮ","holder_sec_code":"7670","doc_id":"S100YFWA","period_end":"2026-03-31","holder_table":"reporting","shares":84000,"book_value_yen":121000000,"prior_shares":84000,"prior_book_value_yen":99000000,"purpose_ja":"(保有目的)　主としてコーティング関連事業において、工業用塗料等に関する取引関係の構築・維持強化のため。(定量的な保有効果)　(注)２","reciprocal":"有","pct_outstanding":0.08172889777372817,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.5301437083771469,"pct_of_holder_assets":0.28527643522338797,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":22824000000,"holder_total_assets_yen":42415000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"大日本塗料株式会社","holder_name_en":"Dai Nippon Toryo Company,Limited","holder_sec_code":"4611","doc_id":"S100YHL6","period_end":"2026-03-31","holder_table":"reporting","shares":73000,"book_value_yen":105000000,"prior_shares":73000,"prior_book_value_yen":86000000,"purpose_ja":"・塗料事業の拡大に寄与している重要な取引先としての関係を維持・強化するため","reciprocal":"有","pct_outstanding":0.07102630401764472,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.1369398508007721,"pct_of_holder_assets":0.07636919048658085,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":76676000000,"holder_total_assets_yen":137490000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"佐藤商事株式会社","holder_name_en":"SATO SHO-JI CORPORATION","holder_sec_code":"8065","doc_id":"S100YFE8","period_end":"2026-03-31","holder_table":"reporting","shares":56000,"book_value_yen":81000000,"prior_shares":56000,"prior_book_value_yen":66000000,"purpose_ja":"主として非鉄金属事業において同事業関連商材に関する取引関係・協業関係の構築・維持強化を目的として保有しております。","reciprocal":"有","pct_outstanding":0.05448593184915212,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.10526999805055559,"pct_of_holder_assets":0.04470001324444837,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":76945000000,"holder_total_assets_yen":181208000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"鳥越製粉株式会社","holder_name_en":"THE TORIGOE CO.,LTD.","holder_sec_code":"2009","doc_id":"S100XTAP","period_end":"2025-12-31","holder_table":"reporting","shares":46000,"book_value_yen":65458000,"prior_shares":46000,"prior_book_value_yen":59984000,"purpose_ja":"取引関係の維持・強化及び今後の事業発展を目的として保有。","reciprocal":"有","pct_outstanding":0.04475630116180353,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.17790353708096165,"pct_of_holder_assets":0.14084871929184625,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":36794097000,"holder_total_assets_yen":46473976000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"日油株式会社","holder_name_en":"NOF CORPORATION","holder_sec_code":"4403","doc_id":"S100YO71","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":105000,"prior_book_value_yen":124000000,"purpose_ja":"―","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":null,"pct_of_holder_assets":null,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":296465000000,"holder_total_assets_yen":399168000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"日本化学工業株式会社","holder_name_en":"Nippon Chemical Industrial Co.,Ltd.","holder_sec_code":"4092","doc_id":"S100YJUC","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":98702,"prior_book_value_yen":116000000,"purpose_ja":"化学品事業における取引先であり、同社との営業取引等の業務をより円滑に推進し、取引関係を維持するために保有をしておりましたが、保有の合理性を検証した結果、市場への影響や事業面での影響等を考慮しつつ、全株式を売却いたしました。","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":null,"pct_of_holder_assets":null,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":50321000000,"holder_total_assets_yen":78457000000,"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　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（実質保有株式数）を勘案し記載しています。"},{"holder_table":"reporting","note_no":"2","text_ja":"2　「－」は、当該銘柄を保有していないことを示しています。"}],"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":9,"acquisition_cost_yen":45000000,"issues_decreased":6,"sale_proceeds_yen":4820000000,"entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":2,"sale_proceeds_yen":12000000,"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":26871000000,"listed_yen":26834000000,"unlisted_yen":37000000,"listed_issues":35,"unlisted_issues":6,"equity_yen":221457000000,"equity_basis":"jgaap_consolidated","total_assets_yen":273094000000,"assets_basis":"jgaap_consolidated","pct_of_equity":12.133732507890922,"pct_of_assets":9.839469193757461,"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":26834000000,"issue_count":35,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":37000000,"issue_count":6,"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":19046000000,"equity_yen":187673000000,"equity_basis":"jgaap_consolidated","pct_of_equity":10.148502981249301,"pct_of_assets":8.317684359469304},{"year":"2023","period_end":"2023-03-31","policy_total_yen":18366000000,"equity_yen":196392000000,"equity_basis":"jgaap_consolidated","pct_of_equity":9.35170475375779,"pct_of_assets":7.764634259768152},{"year":"2024","period_end":"2024-03-31","policy_total_yen":24030000000,"equity_yen":219885000000,"equity_basis":"jgaap_consolidated","pct_of_equity":10.928439866293745,"pct_of_assets":8.905970298607585},{"year":"2025","period_end":"2025-03-31","policy_total_yen":22129000000,"equity_yen":223298000000,"equity_basis":"jgaap_consolidated","pct_of_equity":9.91007532534998,"pct_of_assets":8.280261927034612},{"year":"2026","period_end":"2026-03-31","policy_total_yen":26871000000,"equity_yen":221457000000,"equity_basis":"jgaap_consolidated","pct_of_equity":12.133732507890922,"pct_of_assets":9.839469193757461}],"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":54,"book_value_yen":18982000000},{"year":"2023","period_end":"2023-03-31","named_holdings":51,"book_value_yen":18302000000},{"year":"2024","period_end":"2024-03-31","named_holdings":50,"book_value_yen":23969000000},{"year":"2025","period_end":"2025-03-31","named_holdings":41,"book_value_yen":22072000000},{"year":"2026","period_end":"2026-03-31","named_holdings":39,"book_value_yen":26815000000}],"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."}}