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LTD.","holder_sec_code":"1723","doc_id":"S100YH9O","period_end":"2026-03-31","holder_table":"reporting","shares":324848,"book_value_yen":1393000000,"prior_shares":161858,"prior_book_value_yen":898000000,"purpose_ja":"主に空調計装関連事業における取引関係の維持及び強化を目的とし、継続的な計装工事等を受注。なお、株式数の増加は株式分割及び取引先持株会における定期買付によるもの。","reciprocal":"無","pct_outstanding":0.24645749967695166,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":2.972874917301577,"pct_of_holder_assets":2.279906381446505,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":46857000000,"holder_total_assets_yen":61099000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"スルガ銀行株式会社","holder_name_en":"Suruga Bank Ltd.","holder_sec_code":"8358","doc_id":"S100YCW1","period_end":"2026-03-31","holder_table":"reporting","shares":201498,"book_value_yen":864000000,"prior_shares":100749,"prior_book_value_yen":559000000,"purpose_ja":"業界内の有力企業である同社との関係維持を通じて、当社の中長期的な企業価値向上に資するため。株式数の増加は、株式分割によるもの。","reciprocal":"無","pct_outstanding":0.15287363095942227,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.26712754412705875,"pct_of_holder_assets":0.024382087631593427,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":323441000000,"holder_total_assets_yen":3543585000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社　オーテック","holder_name_en":"OTEC CORPORATION","holder_sec_code":"1736","doc_id":"S100YKWY","period_end":"2026-03-31","holder_table":"reporting","shares":125986,"book_value_yen":540607000,"prior_shares":62826,"prior_book_value_yen":348814000,"purpose_ja":"環境システム事業における空調自動制御工事の受注活動及び管工機材事業における資機材の販売活動を円滑に進める目的から株式を保有しております。上記の目的から持株会で買付を行い前事業年度に比べて株式数が増加いたしました。また、株式分割により前事業年度に比べて株式数が増加しました。","reciprocal":"無","pct_outstanding":0.0955837639582218,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":1.9959420063410027,"pct_of_holder_assets":1.3750701833754184,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":27085306000,"holder_total_assets_yen":39314866000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"協立エアテック株式会社","holder_name_en":"KYORITSU AIR TECH INC.","holder_sec_code":"5997","doc_id":"S100XUIL","period_end":"2025-12-31","holder_table":"reporting","shares":83135,"book_value_yen":368707000,"prior_shares":40787,"prior_book_value_yen":259166000,"purpose_ja":"・同社は当社の空調製品の販売先であり、相互の事業拡大や取引関係の強化を目的に株式を保有しております。・取引先持株会を通じた株式の取得。","reciprocal":"無","pct_outstanding":0.0630733273273758,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":3.7384937289403197,"pct_of_holder_assets":2.3482956263999464,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9862448000,"holder_total_assets_yen":15701047000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社ＲＹＯＤＥＮ","holder_name_en":"RYODEN CORPORATION","holder_sec_code":"8084","doc_id":"S100YGNM","period_end":"2026-03-31","holder_table":"reporting","shares":60190,"book_value_yen":258000000,"prior_shares":30093,"prior_book_value_yen":167000000,"purpose_ja":"冷熱ビルシステム事業における販売先であり、同事業部重点攻略顧客として継続的に空調設備ビジネスを中心に取引をしております。継続的な取引がある等、保有に見合う便益が得られ当社の企業価値向上に繋がるものと判断しております。また上記のような目的を踏まえ取引先持株会に継続加入しており、当事業年度では定期買付により３株増加しております。尚、同社の株式分割により、株式数が30,094株増加しております。","reciprocal":"無","pct_outstanding":0.045665286243275996,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.27292056742090065,"pct_of_holder_assets":0.16720348923870568,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":94533000000,"holder_total_assets_yen":154303000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社カナデン","holder_name_en":"KANADEN CORPORATION","holder_sec_code":"8081","doc_id":"S100YFEF","period_end":"2026-03-31","holder_table":"reporting","shares":13200,"book_value_yen":56000000,"prior_shares":6600,"prior_book_value_yen":36000000,"purpose_ja":"・同社株式は、当社のＦＡシステム/ビル設備セグメントの事業活動の円滑化のため保有しております。・当社は保有株式について事業運営上の必要性及び保有の妥当性を取引状況等により検証し、保有リスク・資本コスト等を総合的に勘案して保有意義の有無を定期的に取締役会で精査した上で保有しております。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しませんが、上記の方針に基づいた十分な定量的効果があると判断しております。・2025年10月１日付で株式分割（１株につき２株の割合）を実施しております。","reciprocal":"無","pct_outstanding":0.010014649915455111,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.10998075336816057,"pct_of_holder_assets":0.057165023172250466,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":50918000000,"holder_total_assets_yen":97962000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"ＮＣＤ株式会社","holder_name_en":"NCD Co., Ltd.","holder_sec_code":"4783","doc_id":"S100YEMH","period_end":"2026-03-31","holder_table":"reporting","shares":4000,"book_value_yen":17164000,"prior_shares":2000,"prior_book_value_yen":11104000,"purpose_ja":"長年に亘る当社の主要顧客の１社として、良好な取引関係の維持、拡大のために保有しており、株式分割により株式数が増加","reciprocal":"無","pct_outstanding":0.003034742398622761,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.20075501852457459,"pct_of_holder_assets":0.10164304164729474,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":8549724000,"holder_total_assets_yen":16886547000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社オータケ","holder_name_en":"OTAKE CORPORATION","holder_sec_code":"7434","doc_id":"S100Z9XT","period_end":"2026-05-31","holder_table":"reporting","shares":304,"book_value_yen":1442000,"prior_shares":108,"prior_book_value_yen":723000,"purpose_ja":"当社の主要販売取引先として関係維持・強化のため同社株式を保有しております。株式数の増加は取引先持株会を通じた取得によるものです。","reciprocal":"無","pct_outstanding":0.00023064042229532984,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.008255783170385625,"pct_of_holder_assets":0.004668587435341926,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":17466544000,"holder_total_assets_yen":30887287000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"ＣＢグループマネジメント株式会社","holder_name_en":"CB GROUP MANAGEMENT Co., Ltd.","holder_sec_code":"9852","doc_id":"S100TS8T","period_end":"2024-03-31","holder_table":"reporting","shares":null,"book_value_yen":0,"prior_shares":null,"prior_book_value_yen":0,"purpose_ja":"（保有目的）同社との取引関係の維持、強化のため同社株式を継続保有しています。（定量的な保有効果）（注）１","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2024-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0,"pct_of_holder_assets":0.0,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":24687000000,"holder_total_assets_yen":53201000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"ニッタ株式会社","holder_name_en":"Ｎitta　Ｃorporation","holder_sec_code":"5186","doc_id":"S100YGN5","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":210000,"prior_book_value_yen":1165000000,"purpose_ja":"当事業年度において、保有株式の見直しを行った結果、全株式を売却しています。","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":165625000000,"holder_total_assets_yen":192432000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"八洲電機株式会社","holder_name_en":"Yashima Denki Co.,Ltd.","holder_sec_code":"3153","doc_id":"S100YE8H","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":100,"prior_book_value_yen":0,"purpose_ja":"公共・設備事業における事業機会の創出、取引関係の強化等を目的として保有しておりましたが、当事業年度に保有株式を全て売却しております。","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":36342000000,"holder_total_assets_yen":72871000000,"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　当社の資本金額は13,134百万円であります。"},{"holder_table":"reporting","note_no":"2","text_ja":"２　貸借対照表計上額の上位銘柄を選定する段階において、特定投資株式とみなし保有株式を合算しておりません。"},{"holder_table":"reporting","note_no":"3","text_ja":"３　特定投資株式の京浜急行電鉄㈱、岡谷鋼機㈱は、貸借対照表計上額が資本金額の100分の１以下でありますが、特定投資株式とみなし保有株式を合わせて上位35銘柄について記載しております。"},{"holder_table":"reporting","note_no":"4","text_ja":"４　当社の株式の保有の有無については、当社が保有する特定投資株式、みなし保有株式を発行する会社のグループ会社が保有する当社の株式を含めておりません。"},{"holder_table":"reporting","note_no":"5","text_ja":"５　みなし保有株式の事業年度末日における時価に議決権行使に関する指図権限の対象となる株式数を乗じて得た額を記載しております。"}],"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":2,"acquisition_cost_yen":3004000000,"issues_decreased":4,"sale_proceeds_yen":1002000000,"entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","issues_increased":1,"acquisition_cost_yen":1500000000,"issues_decreased":2,"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":45407000000,"listed_yen":43013000000,"unlisted_yen":2394000000,"listed_issues":34,"unlisted_issues":49,"equity_yen":215056000000,"equity_basis":"jgaap_consolidated","total_assets_yen":381823000000,"assets_basis":"jgaap_consolidated","pct_of_equity":21.114035414031694,"pct_of_assets":11.892159456083053,"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":43013000000,"issue_count":34,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":2394000000,"issue_count":49,"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":26928000000,"equity_yen":136897000000,"equity_basis":"jgaap_consolidated","pct_of_equity":19.670263044478695,"pct_of_assets":8.954032772930411},{"year":"2023","period_end":"2023-03-31","policy_total_yen":27030000000,"equity_yen":147165000000,"equity_basis":"jgaap_consolidated","pct_of_equity":18.36713892569565,"pct_of_assets":8.625008376118013},{"year":"2024","period_end":"2024-03-31","policy_total_yen":34163000000,"equity_yen":167231000000,"equity_basis":"jgaap_consolidated","pct_of_equity":20.42862866334591,"pct_of_assets":10.044809559372666},{"year":"2025","period_end":"2025-03-31","policy_total_yen":30441000000,"equity_yen":184283000000,"equity_basis":"jgaap_consolidated","pct_of_equity":16.51861539045924,"pct_of_assets":9.088249255856862},{"year":"2026","period_end":"2026-03-31","policy_total_yen":45407000000,"equity_yen":215056000000,"equity_basis":"jgaap_consolidated","pct_of_equity":21.114035414031694,"pct_of_assets":11.892159456083053}],"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":55,"book_value_yen":25448000000},{"year":"2023","period_end":"2023-03-31","named_holdings":51,"book_value_yen":25557000000},{"year":"2024","period_end":"2024-03-31","named_holdings":42,"book_value_yen":33035000000},{"year":"2025","period_end":"2025-03-31","named_holdings":38,"book_value_yen":29460000000},{"year":"2026","period_end":"2026-03-31","named_holdings":34,"book_value_yen":42999000000}],"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."}}