- Office Name
- ASA INTERNATIONAL PATENT FIRM
- President
- Minoru HOTTA, Patent Attorney
- Vice President
- Toshihiro NOMURA, Patent Attorney
- Location
- KENCHIKU-KAIKAN 4F, 26-20, 5-CHOME, SHIBA
- MINATO-KU, TOKYO 108-0014, JAPAN
- FACSIMILE (81-3) 5476-7244
- TELEPHONE (81-3) 5476-6355
- E-MAIL asa @pp.iij4u.or.jp
- MINATO-KU, TOKYO 108-0014, JAPAN
- Establishment
- 1992
History

-
ASA INTERNATIONAL PATENT FIRM was established in April 1992, based on KOYAMA Patent Office, which has been managed since 1968.
- 1968
- KOYAMA Patent Office was established by Tomihisa KOYAMA
- 1992
- ASA INTERNATIONAL PATENT FIRM was established by Minoru HOTTA and Tomihisa KOYAMA
- 1995
- Tomihisa KOYAMA retired by reason of his age