Inventor · disambiguated record
Hirotsugu Nakazawa
Also filed as: NAKAZAWA HIROTSUGU
10 granted patents·355 citations·filing 1984–2001
92Inventor score
Top patents by PatentIndex Score
10 records- 0186US4572645AExposure control device for cameraOLYMPUS OPTICAL CO·Filed 1984·Granted Feb 25, 1986·20 cites·19 claims
- 0284US6268722B1Rotation angle sensor having improved magnetic leakage effect prevention and reduction in partsUNISIA JECS CORP·Filed 1999·Granted Jul 31, 2001·63 cites·20 claims
- 0383US5811968ARotation angle sensorUNISIA JECS CORP·Filed 1996·Granted Sep 22, 1998·59 cites·17 claims
- 0483US4885600AZoom mechanism for a zoom lens in cameras and the likeOLYMPUS OPTICAL CO·Filed 1988·Granted Dec 5, 1989·51 cites·7 claims
- 0582US5889400ASensor arranged for detecting angular displacement and direction of valve axleUNISIA JECS CORP·Filed 1997·Granted Mar 30, 1999·53 cites·37 claims
- 0674US6157186ARotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiationUNISIA JECS CORP·Filed 1998·Granted Dec 5, 2000·37 cites·15 claims
- 0764US6462537B2Rotation angle sensorUNISIA JECS CORP·Filed 2001·Granted Oct 8, 2002·9 cites·10 claims
- 0862US4849781ARange detectorOLYMPUS OPTICAL CO·Filed 1987·Granted Jul 18, 1989·24 cites·23 claims
- 0960US4914464AFocussing apparatus for camera with zoom lensOLYMPUS OPTICAL CO·Filed 1989·Granted Apr 3, 1990·25 cites·30 claims
- 1051US6275027B1Rotation angle sensorUNISIA JECS CORP·Filed 1999·Granted Aug 14, 2001·14 cites·17 claims
Join the waitlist — get patent alerts
Get an alert when Hirotsugu Nakazawa 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 →