Enforcement record

Directive against 株式会社岩本工業

株式会社岩本工業 (Construction Business Act)

This page is one enforcement record linked to a confirmed legal entity. Company-level Official Gazette notices, registry data, related-company signals, and other public records are collected on the company profile.

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Construction Business ActSaitama PrefectureConfirmed entity match19 January 2026

Action type

Directive

Law

Construction Business Act

Authority

Saitama Prefecture

Action date

19 January 2026

Current page: Enforcement record

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/api/v1/enforcements?corporate_number=5030001083986&limit=10

Action summary

Company
株式会社岩本工業Japanese original
Original: 株式会社岩本工業
Corporate Number: 5030001083986
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
Directive
指示
Action date
19 January 2026
Issuing authority
Saitama Prefecture
埼玉県
Industry context
建設業者

Violation

Machine-translated summary — verify against original

On July 7, 2022, in the Chiba Inzai area tunnel construction (Part 1) within Funabashi City, Chiba Prefecture, the company failed to direct work according to the work plan for a boom lift. As a result, Iwamoto Corporation was fined 200,000 yen by the Ichikawa Summary Court for violating Article 20 of the Industrial Safety and Health Act, and the judgment was finalized on July 17, 2025. This constitutes a violation of Article 28, Paragraph 1, Item 3 of the Construction Business Act.

Show original Japanese text

令和4年7月7日、千葉県船橋市内の千葉印西エリア洞道新設工事(その1)において、高所作業車の作業計画どおりに作業の指揮を行わせなかった。 これにより、株式会社岩本工業は労働安全衛生法第20条違反により市川簡易裁判所から罰金200,000円の判決を受け、令和7年7月17日に当該判決が確定した。 このことは、建設業法第28条第1項第3号に該当する。

Business location and permit details

Business location address
埼玉県川口市上青木三丁目12番1号
Representative
岩本 大助
Permit / registration number
埼玉県知事許可(般-5)第67567号
Permitted business types
とび
Legal articles
建設業法第28条第1項(第3号該当)
Cause of action
令和4年7月7日、千葉県船橋市内の千葉印西エリア洞道新設工事(その1)において、高所作業車の作業計画どおりに作業の指揮を行わせなかった。 これにより、株式会社岩本工業は労働安全衛生法第20条違反により市川簡易裁判所から罰金200,000円の判決を受け、令和7年7月17日に当該判決が確定した。 このことは、建設業法第28条第1項第3号に該当する。
Overview page
https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1952

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

Compliance context

Medium

A regulator issued a directive requiring specified action.

Construction business law covering licensing, contractor obligations, and public-interest rules for construction work.

Verify the required action and whether the company has disclosed remediation or completion.

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

Evidence pack

Original Saitama Prefecture source (Japanese)
Extracted at
2026-08-12T15:11:19.379+00:00
Evidence checked
2026-08-12T15:11:19.015+00:00
Archive captured
Not archived
Show audit JSON
{
  "record": {
    "id": "eb91b0b7-2777-439f-9ab0-2485372bd437",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-yan-ben-gong-ye-20260119",
    "company_name_original": "株式会社岩本工業",
    "company_name_registry": "株式会社岩本工業",
    "corporate_number": "5030001083986",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "指示",
      "en": "Directive"
    },
    "authority": {
      "ja": "埼玉県",
      "en": "Saitama 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": "Medium",
    "actionMeaning": "A regulator issued a directive requiring specified action.",
    "practicalNote": "Verify the required action and whether the company has disclosed remediation or completion.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-yan-ben-gong-ye-20260119",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1952",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-08-12T15:11:19.379+00:00",
    "translatedAt": "2026-05-01T07:32:36.069+00:00",
    "evidenceCheckedAt": "2026-08-12T15:11:19.015+00:00",
    "generatedAt": "2026-08-17T23:50:41.450Z"
  },
  "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.

Company info

English name
株式会社岩本工業 Japanese original
Japanese name
株式会社岩本工業
Corporate Number
5030001083986
Registered address
埼玉県川口市上青木3丁目12番1号
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About this recordAggregated and translated from public Japanese government disclosures. The English text is for reference only — authoritative content is the linked Japanese source.