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Corporation","held_sec_code":"5938","match_status":"matched","shares":1767,"book_value_yen":2000000,"prior_shares":1767,"prior_book_value_yen":3000000,"purpose_ja":"・同社株式は当社住設・管材・空調部門の事業活動の円滑化のため保有しています。・定量的な保有効果については取引先との営業秘密との判断により記載いたしませんが、前記銘柄と同様の検証の実施により、十分な定量的効果があると判断しております。","reciprocal":"有","pct_outstanding":0.0006147306646306174,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.001646822456071011,"pct_of_holder_assets":0.0006589633846995292,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":121446000000,"holder_total_assets_yen":303507000000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"黒田精工株式会社","held_name_en":"KURODA PRECISION INDUSTRIES LTD.","held_sec_code":"7726","match_status":"matched","shares":2000,"book_value_yen":1000000,"prior_shares":2000,"prior_book_value_yen":1000000,"purpose_ja":"・同社株式は当社産業機器部門の事業活動の円滑化のため保有しています。・定量的な保有効果については取引先との営業秘密との判断により記載いたしませんが、前記銘柄と同様の検証の実施により、十分な定量的効果があると判断しております。","reciprocal":"有","pct_outstanding":0.03575779528876744,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0008234112280355055,"pct_of_holder_assets":0.0003294816923497646,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":121446000000,"holder_total_assets_yen":303507000000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false}],"holders":[{"holder_name":"ダイニチ工業株式会社","holder_name_en":"Dainichi Co.,Ltd.","holder_sec_code":"5951","doc_id":"S100YDWR","period_end":"2026-03-31","holder_table":"reporting","shares":150400,"book_value_yen":887360000,"prior_shares":150400,"prior_book_value_yen":681312000,"purpose_ja":"当該企業は、工業分野、住環境分野を中心に全国に幅広い販売網を持つ専門商社であり、当社とは長年の取引実績があります。当社の販売先として重要企業の一つであり、引き続き当該企業との円滑な取引継続が欠かせないと考えております。当期配当金29百万円","reciprocal":"有","pct_outstanding":0.7080045944979004,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":2.9924994614337317,"pct_of_holder_assets":2.591499399509614,"holder_equity_basis":"parent_only","holder_equity_yen":29652804000,"holder_total_assets_yen":34241181000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"リンナイ株式会社","holder_name_en":"RINNAI CORPORATION","holder_sec_code":"5947","doc_id":"S100YJCU","period_end":"2026-03-31","holder_table":"reporting","shares":62500,"book_value_yen":368000000,"prior_shares":62500,"prior_book_value_yen":283000000,"purpose_ja":"当社グループの事業活動に係る友好的な関係の維持、拡充を目的に株式を保有しております。定量的な保有効果については記載は困難でありますが、当社事業における同社との関係性を踏まえ検証した結果、販売先としての関係の維持、拡充のために保有する合理性があると判断しております。","reciprocal":"無","pct_outstanding":0.29421733481461954,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.07447523293748128,"pct_of_holder_assets":0.05665294987907366,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":494124000000,"holder_total_assets_yen":649569000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"アネスト岩田株式会社","holder_name_en":"ANEST IWATA Corporation","holder_sec_code":"6381","doc_id":"S100YF9W","period_end":"2026-03-31","holder_table":"reporting","shares":22800,"book_value_yen":134000000,"prior_shares":22800,"prior_book_value_yen":103000000,"purpose_ja":"営業取引上の関係性を維持・強化する目的で取得し、保有を継続しています。販売チャネル及び物流ネットワークの活用による取引を通じて利益並びに企業価値を高め、協力関係の持続的な発展を目指します。","reciprocal":"有","pct_outstanding":0.10733048374037321,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.23287337944457961,"pct_of_holder_assets":0.1795259977760212,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":57542000000,"holder_total_assets_yen":74641000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社イチネンホールディングス","holder_name_en":"ICHINEN HOLDINGS CO., LTD.","holder_sec_code":"9619","doc_id":"S100YCGP","period_end":"2026-03-31","holder_table":"reporting","shares":6262,"book_value_yen":36000000,"prior_shares":5942,"prior_book_value_yen":26000000,"purpose_ja":"・当社グループにおいて主に自動車リース関連事業の取引先として関係の維持・強化を図るため。・当事業年度において持株会を通じた買付により、保有株式が319株増加しております。","reciprocal":"有","pct_outstanding":0.02947822320974636,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.04989950793540786,"pct_of_holder_assets":0.01701299130919694,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":72145000000,"holder_total_assets_yen":211603000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社稲葉製作所","holder_name_en":"INABA SEISAKUSHO Co., Ltd.","holder_sec_code":"3421","doc_id":"S100Z9XX","period_end":"2026-07-31","holder_table":"reporting","shares":5600,"book_value_yen":32000000,"prior_shares":5600,"prior_book_value_yen":26000000,"purpose_ja":"主として鋼製物置製品の主要販売先であり、かつ鋼製物置事業での取引連携を継続的に推進しており、良好な関係の維持・強化及び競争力の強化を図るため。なお、当該株式の保有にあたっては、保有目的に照らして適正かどうかの検証に加え、保有に伴う便益や、リスク、資本コスト等の定量的な検証を実施しています。","reciprocal":"有","pct_outstanding":0.026361873199389912,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.07147103926484889,"pct_of_holder_assets":0.05290237209442194,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":44773380000,"holder_total_assets_yen":60488781000,"implausible":false,"reciprocal_held_both_ways":true}],"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）　株式数につきましては、１株未満の端数を切り捨てて記載しております。"}],"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":10,"acquisition_cost_yen":836000000,"issues_decreased":null,"sale_proceeds_yen":null,"entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":1,"sale_proceeds_yen":0,"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":13911000000,"listed_yen":13228000000,"unlisted_yen":683000000,"listed_issues":35,"unlisted_issues":24,"equity_yen":121446000000,"equity_basis":"jgaap_consolidated","total_assets_yen":303507000000,"assets_basis":"jgaap_consolidated","pct_of_equity":11.454473593201916,"pct_of_assets":4.583419822277575,"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":13228000000,"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":683000000,"issue_count":24,"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":6324000000,"equity_yen":92605000000,"equity_basis":"jgaap_consolidated","pct_of_equity":6.829004913341612,"pct_of_assets":2.437811520625412},{"year":"2023","period_end":"2023-03-31","policy_total_yen":7080000000,"equity_yen":95240000000,"equity_basis":"jgaap_consolidated","pct_of_equity":7.43385132297354,"pct_of_assets":2.61044620932239},{"year":"2024","period_end":"2024-03-31","policy_total_yen":10405000000,"equity_yen":102409000000,"equity_basis":"jgaap_consolidated","pct_of_equity":10.160239822671835,"pct_of_assets":3.5757365398692045},{"year":"2025","period_end":"2025-03-31","policy_total_yen":9750000000,"equity_yen":109416000000,"equity_basis":"jgaap_consolidated","pct_of_equity":8.910945382759378,"pct_of_assets":3.3897126566655658},{"year":"2026","period_end":"2026-03-31","policy_total_yen":13911000000,"equity_yen":121446000000,"equity_basis":"jgaap_consolidated","pct_of_equity":11.454473593201916,"pct_of_assets":4.583419822277575}],"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":"2019","period_end":"2019-03-31","named_holdings":43,"book_value_yen":8629000000},{"year":"2022","period_end":"2022-03-31","named_holdings":37,"book_value_yen":5428000000},{"year":"2023","period_end":"2023-03-31","named_holdings":35,"book_value_yen":6187000000},{"year":"2024","period_end":"2024-03-31","named_holdings":36,"book_value_yen":9510000000},{"year":"2025","period_end":"2025-03-31","named_holdings":36,"book_value_yen":8898000000},{"year":"2026","period_end":"2026-03-31","named_holdings":35,"book_value_yen":13211000000}],"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."}}