JPAA Benrishi Navi Patent Attorney Scraper

Scrape the complete Japan Patent Attorney (弁理士) directory from JPAA benrishi-navi.com — the canonical source for ~11,800 registered patent attorneys maintained by the Japan Patent Attorneys Association. Returns registration number, name (kanji/furigana), office details, practice fields, litigation-eligible flag, and more.

What this actor does

This actor crawls the JPAA's attorney search system and retrieves structured data on every registered 弁理士 (benrishi, Japan patent attorney). It is the only public tool to bulk-export this directory.

The full dataset covers:

• Registration details — registration number and year
• Name — kanji, furigana (reading), and romaji (where available)
• Office — name, full address, prefecture, city, phone, fax, website
• Practice fields — e.g. 特許・実用新案 (patent/utility model), 商標 (trademark), 意匠 (design), 電気 (electrical), 化学 (chemistry), バイオ (biotech), PCT/国際出願 (international filing)
• Languages spoken — English, Chinese, Korean, German, French, etc.
• Litigation eligible — the 付記弁理士 flag indicating attorneys certified to handle IP litigation
• Member type — qualification basis (exam pass, attorney conversion, etc.)
• Colleagues — co-attorneys registered at the same office

Use cases

• Foreign patent filers — US, EU, CN, KR law firms need to identify Japan local agents for patent prosecution and litigation; filter by practice field and language
• IP-litigation co-counsel lookup — filter on litigation_eligible: true to find 付記弁理士 certified for IP court proceedings
• IP vendor prospecting — sales teams at Clarivate, Anaqua, IPwe, and patent-translation agencies targeting Japan patent law firms
• Patent broker platforms — identify 弁理士 specialising in specific technology domains
• Research — mapping the Japanese patent attorney landscape by prefecture, year, or practice area

Input

Parameter	Type	Default	Description
maxItems	integer	10	Maximum number of attorney records to return. Set to 0 or omit to scrape the full directory (~11,800).

Output

Each record in the dataset corresponds to one registered patent attorney.

{
  "registration_number": "12345",
  "name_kanji": "山田太郎",
  "name_furigana": "ヤマダタロウ",
  "name_romaji": "",
  "registration_year": 1998,
  "office_name": "山田国際特許事務所",
  "office_address": "東京都千代田区丸の内1-1-1",
  "office_phone": "03-0000-0000",
  "office_fax": "03-0000-0001",
  "office_email": "",
  "office_url": "https://example.com",
  "prefecture": "東京都",
  "city": "千代田区丸の内",
  "practice_fields": ["特許・実用新案", "商標", "電気"],
  "languages_spoken": ["英語"],
  "litigation_eligible": false,
  "member_type": "弁理士試験合格",
  "colleagues": ["67890"],
  "profile_url": "https://www.benrishi-navi.com/expert/expert1_3.php",
  "source_url": "https://www.benrishi-navi.com/expert/expert1_3.php",
  "scraped_at": "2026-05-27T00:00:00.000Z"
}

Notes

• The source (benrishi-navi.com) is a plain server-rendered PHP site — no JS execution required, no captcha, no proxy needed.
• Scraping the full directory (~11,800 attorneys across ~400 pages) typically completes in under two hours at a polite 1–3 requests/second.
• The site does not publish email addresses; office_email is always empty.
• Romaji (romanized) names are not available in the source; name_romaji is returned as an empty string.
• The litigation_eligible flag is derived from the 侵害訴訟(訴訟代理・訴訟補佐) field — it reflects self-reported litigation experience, not the formal 付記 registration flag.