Action summary

Company

道岡建設工業株式会社Japanese original

Original: 道岡建設工業株式会社

Corporate Number: 3120101006955

Entity match

Confirmed entity match100/100Machine checked

source_corporate_number_nta_current_name

国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。

Governing law

Construction Business Act

建設業法

Action type

Business Suspension

営業停止

Action date

1 April 2022

Issuing authority

Osaka Prefecture

大阪府

Industry context

建設業者

Violation

Dooka Construction Industry Co., Ltd. was subject to a 25-day suspension of business starting April 14, 2022, issued by Osaka Prefecture under Article 28, Paragraph 3 of the Construction Business Act. The suspension covered all construction-related business activities. The violation involved contracting the entire construction project ordered by the Japan Agency for High-speed Rail and other services in Osaka City to Tsujiwara Sogyo Co., Ltd., in violation of Article 22, Paragraph 1 of the Act. The company also submitted a construction system diagram indicating that A Corporation would be the primary subcontractor responsible for temporary structures, which was questioned by the client. In reality, the company subcontracted demolition work to Tsujiwara Sogyo Co., Ltd., and other work to unlicensed companies such as Asmotech and Kenkatsu Kasei, with personnel not properly licensed or employed. Additionally, B, listed as the chief engineer of A Corporation, was not an employee of that company but was hired or subcontracted by Kenkatsu Kasei. The company also created false construction system records and diagrams, violating Articles 24-8, Paragraphs 1 and 4 of the Construction Business Act.

Business location and permit details

Business location address

大阪府堺市堺区石津町１－３－１５－２０１号

Representative

道岡 栄一

Permit / registration number

大阪府知事（特－30）第105535号

Permitted business types

Civil engineering works, Building works, Carpentry works, Plastering works, Scaffolding, earthwork, and concrete works, Stone works, Roof works, Electrical works, Pipe works, Tile, brick, and block works, Steel structure works, Reinforcing bar works, Paving works, し, Sheet-metal works, Glass works, Painting works, Waterproofing works, Interior finishing works, Thermal insulation works, Landscaping works, Fittings works, Water facilities works, Demolition works

Legal articles

建設業法第28条第３項

Cause of action

１ 当該建設業者は、大阪市内の独立行政法人高齢・障害・求職者雇用支援機構発注の工事（以下「本件工事」という。）において、建設業法第22条第１項の規定に違反して、その請け負った建設工事を一括して辻󠄀原総業株式会社に請け負わせた。 ２ 当該建設業者は、本件工事において、辻󠄀原総業株式会社に解体工事一式を請け負わせる下請契約を締結し、その旨を発注者に提出したところ、発注者より一括下請負の疑義を指摘され翌月にA社が１次下請負人として仮設工事を担当する施工体系図（同社の主任技術者はB）を発注者に提出した。しかし、実際には、当該建設業者が解体工事一式を辻󠄀原総業株式会社に、杭工事を除く解体工事一式を同社が山本組株式会社に、仮設工事等を同社がA社の従業員が代表を務める建設業の許可を受けていないアスモテックに、仮設工事等を同社が建設業の許可を受けていない建勝仮設に請け負わせていた。また、A社の主任技術者と記載されたBは、同社の従業員ではなく、建勝仮設が雇い、又は下請契約を締結していた。このように、当該建設業者は、本件工事において、建設業法第24条の８第１項及び第４項の規定に違反して、虚偽の施工体制台帳及び施工体系図を作成した。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=637

These fields are extracted from the original Japanese disclosure or linked overview pages when available.

This context is an operational aid for review workflows, not a credit opinion or legal conclusion.

Evidence pack

{
  "record": {
    "id": "954996cb-aa35-41b9-81ef-68f59c428561",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-dao-gang-jian-she-gong-ye-20220401",
    "company_name_original": "道岡建設工業株式会社",
    "company_name_registry": "道岡建設工業株式会社",
    "corporate_number": "3120101006955",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "営業停止",
      "en": "Business Suspension"
    },
    "authority": {
      "ja": "大阪府",
      "en": "Osaka Prefecture"
    }
  },
  "entity_match": {
    "status": "confirmed",
    "confidence": 100,
    "method": "source_corporate_number_nta_current_name",
    "method_label": "source_corporate_number_nta_current_name",
    "notes": "国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。"
  },
  "review": {
    "status": "machine_reviewed",
    "label": "Machine checked"
  },
  "compliance_context": {
    "severity": "Context needed",
    "actionMeaning": "This is a public Japanese regulatory disclosure. The exact legal effect depends on the cited source and regulator.",
    "practicalNote": "Review the original Japanese source and determine relevance to your counterparty-risk workflow.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-dao-gang-jian-she-gong-ye-20220401",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=637",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T02:20:34.077+00:00",
    "evidenceCheckedAt": "2026-07-17T08:58:00.162+00:00",
    "generatedAt": "2026-07-28T15:25:50.468Z"
  },
  "limitations": [
    "RegBase aggregates public Japanese government disclosures and does not provide a credit opinion.",
    "English summaries are provided for reference. The original Japanese source is authoritative.",
    "Possible or unresolved entity matches should be manually verified before use in a decision."
  ]
}

The original Japanese disclosure is the authoritative record. Use possible or unresolved matches only as leads for manual review.