Inventor · disambiguated record
Kazuo Hirata
Also filed as: HIRATA KAZUO
17 granted patents·343 citations·filing 1981–2007
95Inventor score
Top patents by PatentIndex Score
17 records- 0189USD593134SControl-console box for work machineKUBOTA KK·Filed 2007·Granted May 26, 2009·41 cites·1 claims
- 0285US5992459ARotary flow-path exchanging valveSAGINOMIYA SEISAKUSHO INC·Filed 1998·Granted Nov 30, 1999·42 cites·3 claims
- 0383US5490574AHood having intake openings for drawing air for a radiator and an engineKUBOTA KK·Filed 1994·Granted Feb 13, 1996·45 cites·8 claims
- 0478US4669565AAgricultural tractor with a driver's cabinKUBOTA LTD·Filed 1984·Granted Jun 2, 1987·29 cites·1 claims
- 0576US4450927AApparatus for controlling agricultural tractorKUBOTA LTD·Filed 1982·Granted May 29, 1984·23 cites·5 claims
- 0671US6231028B1Rotary channel-selector valveSAGINOMIYA SEISAKUSHO INC·Filed 2000·Granted May 15, 2001·11 cites·4 claims
- 0770US4696365AFour wheel drive vehicleKUBOTA LTD·Filed 1986·Granted Sep 29, 1987·27 cites·7 claims
- 0860US4460413AMethod of patterning device regions by oxidizing patterned aluminum layerNIPPON TELEGRAPH & TELEPHONE·Filed 1981·Granted Jul 17, 1984·26 cites·10 claims
- 0959US5263385ASpeed control system for a working vehicle having a stepless transmissionKUBOTA KK·Filed 1992·Granted Nov 23, 1993·25 cites·5 claims
- 1058US6125885ARotary channel-selector valveSAGINOMIYA SEISAKUSHO INC·Filed 1998·Granted Oct 3, 2000·15 cites·2 claims
- 1155US6247497B1Rotary channel-selector valveSAGINOMIYA SEISAKUSHO INC·Filed 2000·Granted Jun 19, 2001·4 cites·5 claims
- 1250US4609065AWheel drive structure for agricultural tractorKUBOTA LTD·Filed 1985·Granted Sep 2, 1986·12 cites·9 claims
- 1349US6076553ARotary flow-path exchanging valveSAGINOMIYA SEISAKUSHO INC·Filed 1999·Granted Jun 20, 2000·10 cites·2 claims
- 1448US5211070ASpeed control system for a vehicle having a braking device and a stepless transmissionKUBOTA KK·Filed 1992·Granted May 18, 1993·12 cites·14 claims
- 1547US5937902ARotary flow-path exchanging valveSAGINOMIYA SEISAKUSHO INC·Filed 1998·Granted Aug 17, 1999·15 cites·5 claims
- 1644US6216735B1Rotary channel-selector valveSAGINOMIYA SEISAKUSHO INC·Filed 2000·Granted Apr 17, 2001·2 cites·2 claims
- 1735US6070613ARotary flow-path exchanging valveSAGINOMIYA SEISAKUSHO INC·Filed 1999·Granted Jun 6, 2000·4 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Kazuo Hirata 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 →