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CO.,LTD.","holder_sec_code":"1770","doc_id":"S100YGU7","period_end":"2026-03-31","holder_table":"reporting","shares":12196,"book_value_yen":64154000,"prior_shares":11728,"prior_book_value_yen":34999000,"purpose_ja":"建設事業、機器販売及び情報システム事業において工事等を請け負う取引先であります。長期的な取引の円滑化と安定的な受注の獲得を図るため継続して保有しており、株式数の増加は持株会に加入していることによります。なお、業務提携等の締結はありません。","reciprocal":"無","pct_outstanding":0.18378519133792484,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.310645338404841,"pct_of_holder_assets":0.20167484365515645,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":20651847000,"holder_total_assets_yen":31810611000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"三益半導体工業株式会社","holder_name_en":"MIMASU SEMICONDUCTOR INDUSTRY CO., LTD.","holder_sec_code":"8155","doc_id":"S100UAL3","period_end":"2024-05-31","holder_table":"reporting","shares":9550,"book_value_yen":30000000,"prior_shares":9132,"prior_book_value_yen":22000000,"purpose_ja":"産商事業部の取引先であり、中長期的な取引関係の維持・強化のために保有しております。また、株式数が増加した理由は、取引先持株会を通じた取得であります。","reciprocal":"無","pct_outstanding":0.14405509511558195,"pct_unavailable":null,"pct_basis_period_end":"2024-03-31","pct_share_classes":1,"pct_of_holder_equity":0.036769662577063086,"pct_of_holder_assets":0.024756356194452926,"holder_equity_basis":"parent_only","holder_equity_yen":81589000000,"holder_total_assets_yen":121181000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"日本製罐株式会社","holder_name_en":"NIHON SEIKAN K.K.","holder_sec_code":"5905","doc_id":"S100YK2J","period_end":"2026-03-31","holder_table":"reporting","shares":2309,"book_value_yen":12149000,"prior_shares":2225,"prior_book_value_yen":6640000,"purpose_ja":"取引関係の維持、強化のため、同社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により、株式数が増加しております。","reciprocal":"無","pct_outstanding":0.03479501531643723,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.25016287664451875,"pct_of_holder_assets":0.09362760458370666,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":4856436000,"holder_total_assets_yen":12975874000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"仙波糖化工業株式会社","holder_name_en":"Semba Tohka Industries Co.,Ltd.","holder_sec_code":"2916","doc_id":"S100YKFH","period_end":"2026-03-31","holder_table":"reporting","shares":2062,"book_value_yen":10846000,"prior_shares":1978,"prior_book_value_yen":5902000,"purpose_ja":"当社グループの原材料関連取引先であり、原材料の安定調達を目的として保有しております。供給体制の維持・強化を通じてサプライチェーンの安定化に寄与しております。","reciprocal":"無","pct_outstanding":0.03107289804352255,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.08495599066627711,"pct_of_holder_assets":0.05057649557392711,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":12766610000,"holder_total_assets_yen":21444744000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"昭和化学工業株式会社","holder_name_en":"Showa Chemical Industry Co.,Ltd.","holder_sec_code":"4990","doc_id":"S100YJME","period_end":"2026-03-31","holder_table":"reporting","shares":2000,"book_value_yen":10520000,"prior_shares":2000,"prior_book_value_yen":5968000,"purpose_ja":"濾過助剤商品の販売先として、安定的な取引関係の維持・強化のための政策投資。配当金収入200千円、配当利回り年1.90％。その他の定量的な保有効果及び検証方法については同上。","reciprocal":"無","pct_outstanding":0.030138601400118866,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.11206174218513154,"pct_of_holder_assets":0.07220549133743445,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9387682000,"holder_total_assets_yen":14569529000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"本州化学工業株式会社","holder_name_en":"Honshu Chemical Industry Co.,Ltd.","holder_sec_code":"4115","doc_id":"S100G2MJ","period_end":"2019-03-31","holder_table":"reporting","shares":2300,"book_value_yen":5000000,"prior_shares":2263,"prior_book_value_yen":7000000,"purpose_ja":null,"reciprocal":"無","pct_outstanding":0.033192826654936614,"pct_unavailable":null,"pct_basis_period_end":"2019-03-31","pct_share_classes":1,"pct_of_holder_equity":0.024473813020068527,"pct_of_holder_assets":0.017394329448599758,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":20430000000,"holder_total_assets_yen":28745000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社　セキチュー","holder_name_en":"SEKICHU CO.,LTD.","holder_sec_code":"9976","doc_id":"S100Y3VC","period_end":"2026-02-20","holder_table":"reporting","shares":300,"book_value_yen":1530000,"prior_shares":300,"prior_book_value_yen":813000,"purpose_ja":"群馬県内企業の情報収集","reciprocal":"無","pct_outstanding":0.00452079021001783,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.01290933018041928,"pct_of_holder_assets":0.006527588640067354,"holder_equity_basis":"parent_only","holder_equity_yen":11851893000,"holder_total_assets_yen":23438977000,"implausible":false,"reciprocal_held_both_ways":false}],"reclassified":[{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社横浜フィナンシャルグループ","held_name_en":"Yokohama Financial Group, Inc.","held_sec_code":"7186","match_status":"matched","shares":436000,"book_value_yen":599000000,"fy_of_change_ja":"2022年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社みずほフィナンシャルグループ","held_name_en":"Mizuho Financial Group, Inc.","held_sec_code":"8411","match_status":"matched","shares":41786,"book_value_yen":254000000,"fy_of_change_ja":"2026年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社みずほフィナンシャルグループ","held_name_en":"Mizuho Financial Group, Inc.","held_sec_code":"8411","match_status":"matched","shares":35349,"book_value_yen":215000000,"fy_of_change_ja":"2022年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社三井住友フィナンシャルグループ","held_name_en":"Sumitomo Mitsui Financial Group, Inc.","held_sec_code":"8316","match_status":"matched","shares":42504,"book_value_yen":212000000,"fy_of_change_ja":"2026年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"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","held_name_en":"MS&AD Insurance Group Holdings, Inc.","held_sec_code":"8725","match_status":"matched","shares":39060,"book_value_yen":157000000,"fy_of_change_ja":"2026年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社三菱UFJフィナンシャル・グループ","held_name_en":"Mitsubishi UFJ Financial Group, Inc.","held_sec_code":"8306","match_status":"matched","shares":57000,"book_value_yen":148000000,"fy_of_change_ja":"2022年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"双日株式会社","held_name_en":"Sojitz Corporation","held_sec_code":"2768","match_status":"matched","shares":3417,"book_value_yen":20000000,"fy_of_change_ja":"2022年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社みずほフィナンシャルグループ","held_name_en":"Mizuho Financial Group, Inc.","held_sec_code":"8411","match_status":"matched","shares":3214,"book_value_yen":19000000,"fy_of_change_ja":"2025年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"株式会社三井住友フィナンシャルグループ","held_name_en":"Sumitomo Mitsui Financial Group, Inc.","held_sec_code":"8316","match_status":"matched","shares":3696,"book_value_yen":18000000,"fy_of_change_ja":"2025年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false},{"holder_table":"reporting","direction":"to_pure","held_name_raw":"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","held_name_en":"MS&AD Insurance Group Holdings, Inc.","held_sec_code":"8725","match_status":"matched","shares":4700,"book_value_yen":18000000,"fy_of_change_ja":"2022年３月期","reason_ja":"同社における当社株式の売却株式数割合に応じ、当社保有株式数を変更しております。なお、売却に関しましては、他の純投資目的の投資株式と同様に、その金融資産としての定量的価値が高い場合は保有を継続いたしますが、大型設備投資等資金需要等に応じて売却を実施いたします。","implausible":false}],"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　特定投資株式の双日(株)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60銘柄について記載しております。"},{"holder_table":"reporting","note_no":"2","text_ja":"２　定量的な保有効果については記載が困難であるため記載しておりませんが、保有の合理性は取締役会において検証し、銘柄ごとに保有の適否を判断しております。"}],"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":[],"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":9804000000,"listed_yen":9744000000,"unlisted_yen":60000000,"listed_issues":9,"unlisted_issues":5,"equity_yen":56853000000,"equity_basis":"jgaap_consolidated","total_assets_yen":68012000000,"assets_basis":"jgaap_consolidated","pct_of_equity":17.244472587198565,"pct_of_assets":14.41510321707934,"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":9744000000,"issue_count":9,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":60000000,"issue_count":5,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"unlisted"}],"scale_history":[{"year":"2020","period_end":"2020-03-31","policy_total_yen":3044000000,"equity_yen":42020000000,"equity_basis":"jgaap_consolidated","pct_of_equity":7.244169443122323,"pct_of_assets":6.0127207363805155},{"year":"2021","period_end":"2021-03-31","policy_total_yen":4485000000,"equity_yen":43750000000,"equity_basis":"jgaap_consolidated","pct_of_equity":10.251428571428571,"pct_of_assets":8.627654662973223},{"year":"2022","period_end":"2022-03-31","policy_total_yen":4022000000,"equity_yen":44899000000,"equity_basis":"jgaap_consolidated","pct_of_equity":8.957883249070136,"pct_of_assets":7.355523043160205},{"year":"2023","period_end":"2023-03-31","policy_total_yen":4391000000,"equity_yen":46107000000,"equity_basis":"jgaap_consolidated","pct_of_equity":9.52349968551413,"pct_of_assets":8.042124542124542},{"year":"2024","period_end":"2024-03-31","policy_total_yen":6982000000,"equity_yen":50281000000,"equity_basis":"jgaap_consolidated","pct_of_equity":13.885960899743441,"pct_of_assets":11.444025569578757},{"year":"2025","period_end":"2025-03-31","policy_total_yen":6372000000,"equity_yen":51731000000,"equity_basis":"jgaap_consolidated","pct_of_equity":12.317565869594635,"pct_of_assets":10.11139674378749},{"year":"2026","period_end":"2026-03-31","policy_total_yen":9804000000,"equity_yen":56853000000,"equity_basis":"jgaap_consolidated","pct_of_equity":17.244472587198565,"pct_of_assets":14.41510321707934}],"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":13,"book_value_yen":3488000000},{"year":"2020","period_end":"2020-03-31","named_holdings":13,"book_value_yen":2978000000},{"year":"2021","period_end":"2021-03-31","named_holdings":12,"book_value_yen":4419000000},{"year":"2022","period_end":"2022-03-31","named_holdings":12,"book_value_yen":3956000000},{"year":"2023","period_end":"2023-03-31","named_holdings":12,"book_value_yen":4327000000},{"year":"2024","period_end":"2024-03-31","named_holdings":12,"book_value_yen":6917000000},{"year":"2025","period_end":"2025-03-31","named_holdings":12,"book_value_yen":6307000000},{"year":"2026","period_end":"2026-03-31","named_holdings":12,"book_value_yen":9740000000}],"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."}}