Ryohei ARINAKA joined LAVOIX in April 2014.

Practice areas

Patent prosecution

Patent litigation

Electronics, Electricity, Physics, Mechanics

Technology Areas

Electrical engineering


Computer Science


Image Processing


Professional Admissions

Japanese Patent Attorney


  • Advanced Master in Intellectual Property Law and Knowledge Management (MSc.), Maastricht University, 2012
  • M.E. in Electrical Engineering, Doshisha university, 2001
  • B.E. in Electrical Engineering, Doshisha university, 1999

Professional Experience

He started his career as an electrical engineer at IBM Japan, Ltd. and Hitachi Global Storage Technologies, Inc., and was engaged in developing hard-disk drives for 5 years.

After this industry experience, he stepped into the IP field, and worked for a well-known IP law firm in Tokyo for 5 years and a German IP law firm for one year.

He is a registered Japanese Patent Attorney and specializes in drafting and prosecuting patent applications in Japan and Europe. Therefore, he is not only well-versed in Japanese patent law and prosecution but also has extensive knowledge and experience involving patent prosecution in Europe. He is fluent in Japanese.

  • LAVOIX - WTR1000
  • LAVOIX - Legal500
  • LAVOIX - IPStars
  • LAVOIX - Patent1000
Certification ISO 9001:2008 applicable to all the IP attorney activities and for all its offices.