{"entity":{"edinet_code":"E00842","sec_code":"4100","name_ja":"戸田工業株式会社","name_en":"TODA KOGYO CORP.","industry":"化学","industry_en":"Chemicals"},"names_note":"English company names are as filed: each company's own annual report states its English name on the cover page. For a company that files no annual report, EDINET's filer registry is used instead. The as-filed Japanese name is always returned alongside.","filing":{"doc_id":"S100YIHV","filer_name":"戸田工業株式会社","filer_name_en":"TODA KOGYO CORP.","period_end":"2026-03-31","filed_date":"2026-06-24","sha256":"da0ee6af704bb86b4a25d40e3e45bfff138876473b6d7f55410380d45a5f1fbb","status":"clean"},"basis":{"measurement":"carrying_amount","entity_scope":"parent_only","share_scope":"both","trust_included":"unknown","as_of":"2026-03-31","period_type":"annual","labels":{"measurement":"Balance-sheet carrying amount. Under Japanese GAAP listed equities are carried at market with the valuation difference in other comprehensive income, so carrying amount and acquisition cost diverge enormously on positions bought decades ago.","entity_scope":"The reporting company itself (提出会社) — the holding company, excluding the group holders it names separately.","share_scope":"Listed and unlisted shares together.","trust_included":"The filing does not state whether retirement-benefit-trust shares are included. Never guessed — shares contributed to such a trust leave the holder's balance sheet while the settlor normally keeps the right to instruct the vote.","period_type":"From an annual securities report (有価証券報告書). The policy shareholding table appears only in the annual report."},"not_comparable":"Figures are balance-sheet CARRYING AMOUNT at fiscal year end, from the annual securities report. They are NOT comparable with the acquisition-cost or book-value-reduction figures quoted in press coverage and IR presentations, and NOT comparable with interim (half-year) figures, which this product does not hold. Always state the basis with the number, and use check_claim before setting one of our figures against a published one."},"basis_note":"The basis every yen figure on this response is on. entity_scope is read from the filing's own disclosing entities, not assumed: scale_entities and flows each carry their own entity_scope and share_scope, and a figure quoted for one entity is not the group figure.","holdings":[{"holder_table":"reporting","held_name_raw":"ＴＤＫ㈱","held_name_en":"TDK CORPORATION","held_sec_code":"6762","match_status":"matched","shares":1350000,"book_value_yen":2654000000,"prior_shares":1350000,"prior_book_value_yen":2087000000,"purpose_ja":"（保有目的）資本業務提携の円滑化、維持、拡大（業務提携の概要）　電子部品用途の材料・素材に係　る商品の企画・開発、販売協力、並びに物流業務に　関する効率化・共有化（定量的な保有効果）　（注）1","reciprocal":"有","pct_outstanding":0.07117346970851988,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":27.03473566262606,"pct_of_holder_assets":5.542213962035626,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9817000000,"holder_total_assets_yen":47887000000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱ひろぎんホールディングス","held_name_en":"Hirogin Holdings, Inc.","held_sec_code":"7337","match_status":"matched","shares":590000,"book_value_yen":1014000000,"prior_shares":590000,"prior_book_value_yen":714000000,"purpose_ja":"（保有目的）主要金融機関との取引の円滑化（定量的な保有効果）　（注）1","reciprocal":"無（注）2","pct_outstanding":0.19784236403973465,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":10.329021085871448,"pct_of_holder_assets":2.117484912397937,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9817000000,"holder_total_assets_yen":47887000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱山口フィナンシャルグループ","held_name_en":"Yamaguchi Financial Group, Inc.","held_sec_code":"8418","match_status":"matched","shares":51000,"book_value_yen":122000000,"prior_shares":51000,"prior_book_value_yen":89000000,"purpose_ja":"（保有目的）金融機関との取引の円滑化（定量的な保有効果）　（注）1","reciprocal":"無","pct_outstanding":0.024594478522210955,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":1.2427421819293063,"pct_of_holder_assets":0.25476642930231586,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9817000000,"holder_total_assets_yen":47887000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"テイカ㈱","held_name_en":"ＴＡＹＣＡ ＣＯＲＰＯＲＡＴＩＯＮ","held_sec_code":"4027","match_status":"matched","shares":430000,"book_value_yen":72000000,"prior_shares":43000,"prior_book_value_yen":57000000,"purpose_ja":"（保有目的）機能性顔料事業における取引の円滑化、　　　　　　維持、拡大（定量的な保有効果）　（注）1","reciprocal":"有","pct_outstanding":null,"pct_unavailable":"holding restated onto a share base the issuer has not filed yet","pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.7334216155648365,"pct_of_holder_assets":0.15035395827677658,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9817000000,"holder_total_assets_yen":47887000000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":10.0,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱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":10600,"book_value_yen":64000000,"prior_shares":10600,"prior_book_value_yen":42000000,"purpose_ja":"（保有目的）金融機関との取引の円滑化（定量的な保有効果）　（注）1","reciprocal":"無（注）2","pct_outstanding":0.00043410701958610686,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.6519303249465214,"pct_of_holder_assets":0.1336479629126903,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9817000000,"holder_total_assets_yen":47887000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false}],"holders":[{"holder_name":"株式会社中国銀行","holder_name_en":"The Chugoku Bank，Limited","holder_sec_code":"8382","doc_id":"S100O9NP","period_end":"2022-03-31","holder_table":"reporting","shares":120000,"book_value_yen":346000000,"prior_shares":120000,"prior_book_value_yen":259000000,"purpose_ja":"雇用創出などの企業活動により地域社会の発展に貢献する地元上場企業との関係強化を通じ、「持続的な成長・企業価値向上」の維持・強化を図るため。","reciprocal":"無","pct_outstanding":2.0817098887464844,"pct_unavailable":null,"pct_basis_period_end":"2022-03-31","pct_share_classes":1,"pct_of_holder_equity":0.06263418378245302,"pct_of_holder_assets":0.0033894290369642704,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":552414000000,"holder_total_assets_yen":10208209000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社ひろぎんホールディングス","holder_name_en":"Hirogin Holdings, Inc.","holder_sec_code":"7337","doc_id":"S100YCZN","period_end":"2026-03-31","holder_table":"largest","shares":217000,"book_value_yen":289000000,"prior_shares":217000,"prior_book_value_yen":245000000,"purpose_ja":"同社は、広島県に本社を有し、また当社グループの主要営業地域に主要な製造拠点を有する機能性顔料製造・販売事業者であり、地域経済における産業・雇用創出に貢献していると認識しております。同社との各種取引（役職員との取引含む）における収益等及び当該株式の配当金額の合計と、株式保有に係る資本コストとの比較分析及び当該株式の配当金RORAと、保有する上場政策保有株式全体の配当金RORA（加重平均）との比較分析により、定量的な保有効果等を含め保有意義を確認しております。当社の主要営業地域の中核企業として認識しており、上記保有目的の通り、当社の企業価値向上に資するものとして保有しております。","reciprocal":"有","pct_outstanding":3.749530012827885,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.05080657637511779,"pct_of_holder_assets":0.002366798194583406,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":568824000000,"holder_total_assets_yen":12210589000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社カネカ","holder_name_en":"ＫＡＮＥＫＡ ＣＯＲＰＯＲＡＴＩＯＮ","holder_sec_code":"4118","doc_id":"S100YIFD","period_end":"2026-03-31","holder_table":"reporting","shares":12065,"book_value_yen":16000000,"prior_shares":12065,"prior_book_value_yen":13000000,"purpose_ja":"Material Solutions Unitの重要な取引先であり、中長期的な取引関係構築、維持及び強化等を目的に保有しております。","reciprocal":"無","pct_outstanding":0.20847041292520016,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.00306707893319327,"pct_of_holder_assets":0.0016681367121442437,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":521669000000,"holder_total_assets_yen":959154000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"テイカ株式会社","holder_name_en":"ＴＡＹＣＡ ＣＯＲＰＯＲＡＴＩＯＮ","holder_sec_code":"4027","doc_id":"S100YHFP","period_end":"2026-03-31","holder_table":"reporting","shares":6700,"book_value_yen":8000000,"prior_shares":6700,"prior_book_value_yen":7000000,"purpose_ja":"機能性材料事業製品の販売先であり、中長期的な取引関係の維持・強化が必要と判断し、保有しております。（注）１ ","reciprocal":"有","pct_outstanding":0.11576889901357987,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.013010033988713796,"pct_of_holder_assets":0.009033627679035209,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":61491000000,"holder_total_assets_yen":88558000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社中電工","holder_name_en":"ＣＨＵＤＥＮＫＯ  ＣＯＲＰＯＲＡＴＩＯＮ","holder_sec_code":"1941","doc_id":"S100YD98","period_end":"2026-03-31","holder_table":"reporting","shares":3000,"book_value_yen":3000000,"prior_shares":3000,"prior_book_value_yen":3000000,"purpose_ja":"当社が設備工事を請け負っている主要な取引先であるとともに、継続的に取引がある地元企業であり、関係強化により中長期的な工場等の工事受注を推進し、双方の事業成長、地域経済の活性化に寄与することを目的として保有している。","reciprocal":"無","pct_outstanding":0.051836820453841734,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0012105413944629836,"pct_of_holder_assets":0.0009439334967387097,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":247823000000,"holder_total_assets_yen":317819000000,"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.当社は、特定投資株式における定量的な保有効果の記載が困難であるため、保有の合理性を検証した方法に　　　　　ついて記載いたします。当社は、個別の政策保有株式について、保有先企業との取引状況並びに保有先企業　　　　　の財政状態、経営成績の状況を継続的にモニタリングし、毎期、取締役会において保有の合理性を検証して　　　　　おります。"},{"holder_table":"reporting","note_no":"2","text_ja":"2.保有先企業は当社株式を保有しておりませんが、同社子会社は当社株式を保有しております。"}],"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":null,"acquisition_cost_yen":null,"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":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":3945000000,"listed_yen":3928000000,"unlisted_yen":17000000,"listed_issues":5,"unlisted_issues":5,"equity_yen":9817000000,"equity_basis":"jgaap_consolidated","total_assets_yen":47887000000,"assets_basis":"jgaap_consolidated","pct_of_equity":40.18539268615667,"pct_of_assets":8.23814396391505,"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":3928000000,"issue_count":5,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":17000000,"issue_count":5,"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":1798000000,"equity_yen":13958000000,"equity_basis":"jgaap_consolidated","pct_of_equity":12.881501647800544,"pct_of_assets":3.505419948529985},{"year":"2023","period_end":"2023-03-31","policy_total_yen":1877000000,"equity_yen":16559000000,"equity_basis":"jgaap_consolidated","pct_of_equity":11.335225557098859,"pct_of_assets":3.6085050753614274},{"year":"2024","period_end":"2024-03-31","policy_total_yen":2857000000,"equity_yen":14525000000,"equity_basis":"jgaap_consolidated","pct_of_equity":19.669535283993117,"pct_of_assets":5.318911270804632},{"year":"2025","period_end":"2025-03-31","policy_total_yen":3008000000,"equity_yen":11777000000,"equity_basis":"jgaap_consolidated","pct_of_equity":25.541309331748323,"pct_of_assets":5.936217240290496},{"year":"2026","period_end":"2026-03-31","policy_total_yen":3945000000,"equity_yen":9817000000,"equity_basis":"jgaap_consolidated","pct_of_equity":40.18539268615667,"pct_of_assets":8.23814396391505}],"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":12,"book_value_yen":1777000000},{"year":"2023","period_end":"2023-03-31","named_holdings":9,"book_value_yen":1856000000},{"year":"2024","period_end":"2024-03-31","named_holdings":9,"book_value_yen":2838000000},{"year":"2025","period_end":"2025-03-31","named_holdings":5,"book_value_yen":2989000000},{"year":"2026","period_end":"2026-03-31","named_holdings":5,"book_value_yen":3926000000}],"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."}}