Kawasaki, Hashimoto and Partners|Filings of applications for patents

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Our services cover a variety of matters realting to acquisition and maintenance of IP rights. We mainly offer the following services:

  • Filings of applications for patents, utility model registrations, designs, and trademarks in Japan and other countries
  • Preparation of opinions, patent ability search, assignment of IP rights, license negotiation, drafting of contracts, and other IPR-realted matters
  • Trust worthy representation
  • Advice giving and consultation whenever necessary

Some of the Services We Provide

  • Free initial consultation
  • Preparation and prosecution  of patent applications
  • Preparation and prosecution  of unity model applications
  • Preparation and prosecution  of trademark applications
  • Preparation and prosecution  of design applications
  • Prior art searches
  • Patent validity and  infringement opinions
  • Oppositions
  • Invalidation and cancelation  proceedings
  • IP infringement  monitoring
  • Enforcement of rights
  • Litigation support
  • Consulting in connection with licensing, negotiation, and IP strategy
  • Translation

We handle patent matters on a global basis.

As a patent firm based in Osaka, Japan, we specialize in patent application and patent protection in various countries around the world.
The largest and second largest numbers of foreign applications are made in the United States and China, respectively.
Other countries include: South Korea, most of the European countries, Brazil, Russia, India, Canada, Australia, Taiwan, Thailand, the Philippines, Indonesia, Malaysia, Singapore, Peru, Costa Rica, Mexico, and Tanzania.

Areas of Practice

Areas of Practice

<Technical Fields>

  • ●Fuel cells/ Primary batteries/ rechargeable batteries/ solar cells/ power supply systems/ electronic components/ circuits/ resin compositions/ polymers & plastics/ adhesives/ sheet materials/ textiles/ synthetic leather/ semiconductors/ automobile components/ plasm devices/ lasers/ environmental technology/ medical equipment.
  • ●We mainly handle matters in the chemical field, mechanical field, information technology, etc.
    Services in the area of electrochemistry (chemical batteries, fuel cells, etc. ) are in high demand in recent years.
  • ●Services relating to foreign patent applications (mostly US patent applications) are in high demand.
    We have ties with many foreign patent firms and communicate well with all of them.
  • ●We also put much effort in providing consulting services to help our clients discover new inventions. Even if there is an idea, it is a difficult task to write claims and descriptions for a specification. Therefore, we will provide the needed support in completing an invention, by pointing out what is missing and what needs to be added.

Our Patent Attorneys

Ph. D., Attorney Registration No. 11797

Chemicals, batteries, electronic components, plastics, legal opinion, litigation

  • ●Ph.D. in Engineering
  • ●Extensive experience preparing and prosecuting foreign and domestic patent applications
~1995 Received M.S. in Physical Chemistry from Osaka Prefecture University
1995~ Employed as engineer conducting basic research in R&D Department of Nagase-Chiba, Ltd.(now Nagase Chemtex Corporation)
1998~ Joined Asahina & Co. Patent Attorneys
1999~ Joined Ishii Patent Office
2006~ Received B.A. in Law from Kindai University
2009~ Received Ph.D. in Engineering (Materials and Manufacturing Science) from Osaka University
2012~ Became Managing Partner of Ishii Patent Office
2017~ Appoined as Chief Managing Partner of Kawasaki, Hashimoto & Partners

Patent AttorneyPatent Attorney Registration No. 19071

Chemicals, textiles, plastics, electronic components, batteries, legal opinion, litigation

  • ●Extensive practical industry experience at chenical/textile manufacturer.
~1997 Received B. S. in Applied Science (Organic Synthesis) from Osaka University
1997~ Employed by Seiren Co., Ltd., with responsibility for intellectual property matters related to fiber processing and coating technologies
2001~ Joined Asahina & Co. Patent Attorneys and specialized in patent and utility model applications related to resin and rubber compositions
2007~ Reemployed by Seiren Co., Ltd. and again given responsibility for intellectual property matters related to fiber processing and coating technologies
2013~ Joined Ishii Patent Office
2017~ Appointed as Partner of Kawasaki, Hashimoto & Partners

Attorney Registration Number: 10747

Electrical products, machines, optical products, textiles, legal opinion, litigation, design

  • ●Obtained additional registration for representation of clients in specific infringement litigation
  • ●Extensive experience in patenting and designing technologies for electronics, controllers, mechanics, and textile manufacturers
1981 Received B.S. in Engineering Science from Osaka University
1981 Joined Minolta Co., Ltd. (now Konica Minolta, Inc.)
Participated in development of the world's first 0.5× to 2.0× full zoom control system for copiers
Participated in development of fixation control systems, exposure control systems, image-processing systems, etc.
1988 Joined Osamu Kitamura Patent Office (now R&C IP Law Firm)
1995 Registered as a patent attorney
2002 Co-founded Athena Patent Office
2004 Became founder of Sparkle Patent Office
2006 Partnered with Ishii Patent Office with an agreement on cooperation
2017 Appointed as Managing Partner of Kawasaki, Hashimoto & Partners

Attorney Registration Number:11515

Electric and electronic devices, batteries, organic and inorganic materials,legal opinion, litigation Supplementary Note of Specific Infringement Lawsuit Counsel

1989 Received B.Eng. in Industrial Chemistry from Kyoto University
1991 Received M.Eng. in Industrial Chemistry from Kyoto University
1991 Joined Sanyo Electric Co., Ltd. (now Panasonic Corporation)
Engaged in research and development of solar cells and Nickel-hydrogen secondary batteries
1998 Joined Ikeuchi·Sato & partners (IP law firm) and had experience in solar cells, secondary batteries, semiconductor devices, and liquid crystal displays
2003 Joined seiran international patent firm and had experience in electric and electronic devices, organic and inorganic materials
2015 Joined Ascend IP law firm and had experience in metal processing
2017 Kuroda Shigeru patent firm
2019 Joined Kawasaki, Hashimoto & Partners

Attorney Registration Number: 20755

Chemicals, batteries, electronic components, inorganic materials

1996 Received M.S. in Engineering (Applied Chemistry) from Osaka Prefecture University
1996 Joined Shin-Kobe Electric Machinery Co., Ltd.
Engaged mainly in research and development of lead storage batteries
2001 Joined Ishii Patent Office
2012 Joined Morimoto International Patent Office
2015 Returned to Ishii Patent Office
2017 Joined Kawasaki, Hashimoto & Partners

Attorney Registration Number: 20633

Chemicals, batteries, electronic components, inorganic materials

1984 Received M.S in Materials development engineering from Kyusyu University
1984 Joined SANYO Co., Ltd (now Panasonic Co., Ltd.)
Engaged mainly in technology development of Ni-Cd batteries for artificial satellite
1991 Joined Panasonic Co., Ltd.
Engaged in research and development of positive electrode materials for Ni-MH batteries
Engaged in technology development of Ni-MH and Li-ion batteries for EV/HEV
2009 Joined Japan Patent Office (JPO) Engaged mainly in patent examination for technical fields of batteries
2014 Joined U'sfi Patent Attorneys International Office working mainly for technical fields of chemical process, medical devices and machine devices
2017 Joined Kawasaki, Hashimoto & Partners

Organization Chart

Organization Chart


Name of Firm Kawasaki, Hashimoto and Partners
Chief Managing Partner Shinichi Kawasaki, Patent Attorney
Address Kitahama-Yamamoto Building
3-6, Kitahama 2-Chome, Chuo-ku, Osaka, 541-0041 Japan
Phone Number 06-4707-8050
Fax Number 06-4707-8051
Bank Sumitomo Mitsui Banking Corporation
About the Firm Our firm was founded by Kazuo Ishii in December, 1998. Ever since, it has been steadily growing with support from our clients which are mainly major electronics manufacturers.Our firm is located in Kitahama, which is at the center of Osaka.
Access One minute walk from Exit 2 (30 meters west from exit), "Kitahama" station of Keihan Line or Sakaisuji Line

Associate Offices

We frequently collaborate with the following associate offices.

Komatsu Law & Patent Office Yoichiro KOMATSU,Attorney-at-Law/Patent Attorney,General Manager
Highly respected Osaka-based patent law firm.
JTT K.K Gerald T. PETERS,U.S.Patent Agent,Principal
Osaka-based firm specializing in preparation & prosecution of U.S.patent applications.