Inventor · disambiguated record
Katsuhiro Fujiwara
Also filed as: FUJIWARA KATSUHIRO
9 granted patents·75 citations·filing 1978–1990
87Inventor score
Top patents by PatentIndex Score
9 records- 0167USD307740SProgrammable controllerHITACHI LTD·Filed 1986·Granted May 8, 1990·12 cites·1 claims
- 0243US4833589AProgrammable sequence controllerHITACHI LTD·Filed 1986·Granted May 23, 1989·12 cites·6 claims
- 0340US5070476ASequence controllerHITACHI LTD·Filed 1988·Granted Dec 3, 1991·11 cites·38 claims
- 0440US4748553ASequence control apparatusHITACHI LTD·Filed 1986·Granted May 31, 1988·10 cites·9 claims
- 0538US4807178AProgrammable sequence controller having indirect and direct input/output apparatusHITACHI LTD·Filed 1986·Granted Feb 21, 1989·8 cites·8 claims
- 0638US4502112ASequence control apparatusHITACHI LTD·Filed 1981·Granted Feb 26, 1985·10 cites·8 claims
- 0738US4223951AMounting structure for a hub cap or a wheel capTOYOTA MOTOR CO LTD·Filed 1978·Granted Sep 23, 1980·5 cites·4 claims
- 0837US5197129AInput/output device and a control system incorporating such a deviceHITACHI LTD·Filed 1990·Granted Mar 23, 1993·7 cites·32 claims
- 0927US5065307AApparatus for insulating and preventing noise in the output of a sequence controllerHITACHI LTD·Filed 1989·Granted Nov 12, 1991·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Katsuhiro 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 →