Hiroe & Associates > Gifu, Japan > Firm Profile

Hiroe & Associates
4-3, USA 3-CHOME
GIFU CITY 500-8368

Japan > Intellectual property: Independent local firms Tier 4

A well-rounded firm, Hiroe & Associates provides a full range of IP services encompassing patents, design and trade marks. The team is co-led by Takenori Hiroe, an expert in IP rights disputes; Masanori Hiroe, who specialises in trade mark application appeals and cancellation trials; and Satoshi Hashimoto, who focuses on patent applications.

Practice head(s):

Takenori Hiroe; Masanori Hiroe, Satoshi Hashimoto


‘The team always replies to our inquires in more detail and sooner than other firms and handled our firm’s cases very professionally and provided helpful comments to ensure our cases would be granted.

‘The quality, cost, speed and other aspects are all very good and the communication between firms has always been excellent. Overall, Hiroe and Associates is a very trustworthy firm, and we highly recommend their services.’

‘Masanori Hiroe demonstrates exceptional abilities in business quality and system management. Feedback on tasks is provided very promptly.’

‘Hiroe & Associates’ task handling is swift, accurate, and excellent, so we have maintained a strong partnership with Hiroe & Associates.’

Work highlights

The firm: Hiroe and Associates (H&A) has been providing IP legal services since Takenori Hiroe founded the firm in 1979. Mr Hiroe graduated from Gifu University with a degree in textile engineering in 1971 and began working in research and development at Japan Vilene Company Ltd in Tokyo. He obtained his patent attorney’s licence in 1978 and in 1979 he returned to Gifu to open his practice.

Since then, the firm has grown into an organisation with clients and associates all over the world. With the success of its international section attributable to the individual skills of each section member, the firm’s service continues to perform and improve. In 2011 Mr Hiroe received a Medal of Merit award from the emperor of Japan, personally recommended by the commissioner of the Japan Patent Office, for his longstanding services as a patent attorney.

Led by Mr Hiroe, the team of experienced patent attorneys, technical specialists, administrative staff and in-house translators is trusted by our clients worldwide thanks to our precision, speed, reliability and cost performance, and is fully proficient in all areas of intellectual property.

The firm has been recognised as one of the top patent prosecution firms in Japan by various legal publications and is continually practising its management philosophy – namely, to contribute to the growth and prosperity of the clients.

Practice areas: H&A provides a full range of IP services with regard to patents, utility models, industrial designs, trademarks, copyright, translations, searches, filing, prosecution and litigation (also in relation to unfair competition in Japan). The firm also counsels on enforcement, licensing and commercialisation of IP rights.

Sector specialisations
H&A provides services in the entire technological spectrum, including:

  • Electric and electronic group: computers, semi-conductors, telecommunications, optical devices, magnetic recording media, information processing and systems, etc. This group also counsels on copyright infringement, such as internet piracy.
  • Mechanical group: machinery, mechatronics, automotive equipment, air conditioning equipment, and other mechanical engineering, etc.
  • Chemical and material group: plastics, plastic molding technologies, metallurgy, fiber, fuel batteries, etc.
  • Pharmaceutical and biotechnology group: medical and pharmaceutical sciences, foods, biotechnology products, applied microbiology, etc.

Trademarks: H&A has an extensive track record for national trademark applications, international trademark applications under the EU trademark and Madrid systems, trademark infringement issues and licensing, and has been highly trusted by both domestic and foreign clients. The trademark section also counsels on unfair competition and copyright infringement.

Design: H&A additionally has considerable experience regarding design applications, international design applications under The Hague system and protecting design rights. Upon development of a new product to be sold both in Japan and overseas, H&A assists with obtaining design registrations and managing those registrations.

Copyright and unfair competition: H&A also has a high level of expertise in handling unfair competition issues, with both the individual and combined abilities of: • Takenori Hiroe, who was on the Copyright Committee and the Unfair Competition Prevention Law Committee of the Japan Patent Attorneys Association (JPAA) and a member of the Ministry of Economy, Trade and Industry’s Conference on Brinks Countermeasures Against Materials That Infringe the Unfair Competition Prevention Law (2006-2007); and Masanori Hiroe, a trademark specialist, who handles copyright and unfair competition issues.

Searches: H&A has great ability for conducting searches in the fields of patents, trademarks, designs, registration and litigation. The firm’s certified in-house professional searchers handle all searches to ensure accuracy of search procedure and results, and protect client confidentiality, and is highly trusted by both domestic and foreign clients. We employ state-of-the-art computers that link our office to the patent and trademark data distribution system, which provides quick and reliable access to documents published by the government. Our firm has access to all search databases.

Translation: H&A provides high-quality translations by in[1]house translators who have superior ability and experience translating in a wide range of technical and scientific fields, including patent specifications, amendments, contract documents, notices from the Patent and Trademark Office and communication with clients – from Japanese into English or from English into Japanese – quickly and accurately. In addition, patent attorneys check all translations to ensure the best quality.

Department Name Email Telephone
Infuringement Takenori Hiroe
Infuringement Masanori Hiroe
Infuringement Satoshi Hashimoto
Infuringement Motoaki Hattori
Patents Takenori Hiroe (textil engineering,etc)
Copyright Takenori Hiroe
Unfair competition Takenori Hiroe
Trade marks Masanori Hiroe
Designs Masanori Hiroe
Unfair competition Masanori Hiroe
Patents Satoshi Hashimoto (physical engineering,etc)
Patents Motoaki Hattori (synthetic plastics,etc)
Patents Naoya Taniguchi (pharmaceutical)
Patents Toshitaka Sumida(applide microbiology)
Patents Tetsunori Yoshida (information processing)
Patents Kimihiro Nakayama (metalic materials)
Photo Name Position Profile
Satoshi Hashimoto photo Mr Satoshi Hashimoto Patent Attorney / Partner.
Motoaki Hattori photo Mr Motoaki Hattori Patent Attorney.
Takenori Hiroe photo Mr Takenori Hiroe Chairman/Patent Attorney/Partner.
Masanori Hiroe photo Mr Masanori Hiroe Patent Attorney/Partner.
Kimihiro Nakayama photo Mr Kimihiro Nakayama Patent Attorney
Naoya Taniguchi photo Mr Naoya Taniguchi Patent Attorney
Tetsunori Yoshida photo Mr Tetsunori Yoshida Patent Attorney/Partner  
Lawyers : 7
Qualified Chinese Trademark Agent : 1
Japan Intellectual Property Association (JIPA)
Japan Patent Attorneys Association (JPAA)
Partners : 4


In order to boost our overall performance and contribute to international IP protection, we employ and train personnel without regard for ethnicity, nationality, gender or age, to create a working environment in which all members of our diverse team can maximize their potential. We also have systems in place for parental leave and flexible working times, as well as hiring of veteran staff over the age of 65. This creates opportunities for many different ways of working.

Pro bono

All of our patent attorneys are registered as expert advisors in the pro bono invention advice program run by the Japan Patent Attorneys Association, offering free IP advice to small- and medium-sized companies and individuals throughout central Japan.

Our managing partner is also registered as an expert advisor with the Gifu Invention Association and Gifu City Chamber of Commerce and Industry, offering free on-site IP advice to companies and individuals within Gifu prefecture.















  •  特許の実務者の方を対象とした「パテント研究会」・「知的財産戦戦略講座」
  •  企業経営者の方を対象とした「知的財産実務セミナー」
  • 初心者の方を対象とした「知的財産権早わかりセミナー」
  • その他企業様向けオリジナル研修会など。