Inventor · disambiguated record
Fumio Otsuka
Also filed as: OTSUKA FUMIO
9 granted patents·2 pending applications·122 citations·filing 1980–2023
88Inventor score
Top patents by PatentIndex Score
11 records- 0191USD326111SPrinting head for a printerSEIKOSHA KK·Filed 1990·Granted May 12, 1992·42 cites·1 claims
- 0279US5096316ASerial printerSEIKOSHA KK·Filed 1989·Granted Mar 17, 1992·26 cites·25 claims
- 0366US5193797APaper feeding system and picking system used thereforSEIKOSHA KK·Filed 1991·Granted Mar 16, 1993·16 cites·6 claims
- 0462US4325426AAir conditioner systemNIPPON DENSO CO·Filed 1980·Granted Apr 20, 1982·18 cites·5 claims
- 0555US2024105859A1Schottky barrier diodeTAMURA SEISAKUSHO KK·Filed 2023·Application pending·0 cites
- 0650US4986676APrinting head of the impact typeSEIKOSHA KK·Filed 1989·Granted Jan 22, 1991·7 cites·6 claims
- 0742US4887921ADot printer having means for discharging static electricity from the ink ribbonSEIKOSHA KK·Filed 1983·Granted Dec 19, 1989·4 cites·19 claims
- 0838US4601594AEndless ink ribbon cassette having selective ribbon tension controlSEIKOSHA KK·Filed 1983·Granted Jul 22, 1986·3 cites·4 claims
- 0935US5810489APrinting type printerSEIKO PRECISION KK·Filed 1995·Granted Sep 22, 1998·4 cites·60 claims
- 1030US2009002410A1Inkjet Printer and Printing MethodSEIKO PRECISION KK·Filed 2005·Application pending·0 cites
- 1127US5271681APaper cassette having inclined corner clawsSEIKOSHA KK·Filed 1992·Granted Dec 21, 1993·2 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Fumio Otsuka 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 →