Inventor · disambiguated record
Yoshitaka Fujiwara
Also filed as: FUJIWARA YOSHITAKA
6 granted patents·148 citations·filing 1981–2018
84Inventor score
Files withTAKEDA CHEMICAL INDUSTRIES LTD2FUJI ELECTRIC CO LTD1HITACHI LTD1ROLAND CORP1TOKAI RIKA CO LTD1
Top patents by PatentIndex Score
6 records- 0187US4402194AIce making apparatus to be incorporated in refrigeratorsTOKAI RIKA CO LTD·Filed 1981·Granted Sep 6, 1983·51 cites·2 claims
- 0282US4767870AMethod of purifying L-ascorbic acidTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1986·Granted Aug 30, 1988·24 cites·6 claims
- 0375US6931215B1Optical transmitter moduleHITACHI LTD·Filed 2000·Granted Aug 16, 2005·18 cites·12 claims
- 0470US5055990ASnubber circuit for power conversion semiconductor elements and assembly thereofFUJI ELECTRIC CO LTD·Filed 1990·Granted Oct 8, 1991·47 cites·19 claims
- 0565US4778902AMethod of purifying L-ascorbic acidTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1986·Granted Oct 18, 1988·8 cites·5 claims
- 0648US11735150B2Keyboard deviceROLAND CORP·Filed 2018·Granted Aug 22, 2023·0 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Yoshitaka Fujiwara files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →