Inventor · disambiguated record
Hirotaka Kameya
Also filed as: KAMEYA HIROTAKA
20 granted patents·4 pending applications·175 citations·filing 1991–2017
94Inventor score
Files withHITACHI LTD9HITACHI IND EQUIPMENT SYS3KAMEYA HIROTAKA3HITACHI IND CO LTD2HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD1
Top patents by PatentIndex Score
24 records- 0183US6506039B1Screw compressorHITACHI LTD·Filed 2001·Granted Jan 14, 2003·24 cites·11 claims
- 0282US6554595B2Compressor with oil-mist separatorHITACHI LTD·Filed 2001·Granted Apr 29, 2003·23 cites·21 claims
- 0380US7040845B2Screw compressor and method of manufacturing rotors thereofHITACHI IND CO LTD·Filed 2005·Granted May 9, 2006·6 cites·4 claims
- 0479US5314321AScrew-type rotary fluid machine including rotors having treated surfacesHITACHI LTD·Filed 1992·Granted May 24, 1994·39 cites·4 claims
- 0577US8033796B2Motor-mounted internal gear pump and manufacturing method thereof and electronic equipmentHITACHI LTD·Filed 2006·Granted Oct 11, 2011·6 cites·8 claims
- 0676US8491280B2Oil-flooded screw compressor, motor drive system, and motor control deviceKAMEYA HIROTAKA·Filed 2009·Granted Jul 23, 2013·5 cites·6 claims
- 0772US9145892B2Water injected scroll air compressorHITACHI IND EQUIPMENT SYS·Filed 2014·Granted Sep 29, 2015·1 cites·16 claims
- 0871US8882476B2Oil-flooded screw compressor, motor drive system, and motor controlHITACHI IND EQUIPMENT SYS·Filed 2013·Granted Nov 11, 2014·1 cites·6 claims
- 0970US6884049B2Screw compressor and method of manufacturing rotor for the sameHITACHI LTD·Filed 2002·Granted Apr 26, 2005·10 cites·6 claims
- 1069US5223052AMethod of treating surfaces of rotors of the screw type rotary machineHITACHI LTD·Filed 1991·Granted Jun 29, 1993·27 cites·8 claims
- 1167US8585376B2Water-injection type scroll air compressorKAMEYA HIROTAKA·Filed 2010·Granted Nov 19, 2013·1 cites·12 claims
- 1265US8672647B2Water injected scroll air compressorKAWABATA NATSUKI·Filed 2011·Granted Mar 18, 2014·1 cites·16 claims
- 1363US8721308B2Water injected scroll air compressorSHIINOKI KAZUAKI·Filed 2011·Granted May 13, 2014·1 cites·12 claims
- 1462US11009025B2Oil-cooled screw compressorHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2017·Granted May 18, 2021·0 cites·14 claims
- 1559US7081311B2Fuel cell systemHITACHI LTD·Filed 2002·Granted Jul 25, 2006·3 cites·5 claims
- 1658US8202057B2Oil-free scroll compressorKOHSOKABE HIROKATSU·Filed 2009·Granted Jun 19, 2012·2 cites·2 claims
- 1754US7862314B2Screw compressorHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Jan 4, 2011·1 cites·15 claims
- 1853US7014437B2Screw compressorHITACHI LTD TRUSTEE FOR THE BE·Filed 2004·Granted Mar 21, 2006·12 cites·6 claims
- 1950US6257855B1Screw fluid machineHITACHI LTD·Filed 1999·Granted Jul 10, 2001·10 cites·9 claims
- 2049US7044724B2Screw compressor and method of manufacturing rotors thereofHITACHI IND CO LTD·Filed 2003·Granted May 16, 2006·2 cites·8 claims
- 2143US2008159884A1Motor-Mounted Internal Gear Pump and Electronic EquipmentHITACHI LTD·Filed 2006·Application pending·0 cites
- 2241US2006140810A1Motor-mounted internal gear pump and electronic deviceTAIWAN HITACHI CO LTD·Filed 2005·Application pending·0 cites
- 2340US2005265860A1Motor-mounted internal gear pump and electronic deviceKAMEYA HIROTAKA·Filed 2005·Application pending·0 cites
- 2439US2005063852A1Screw compressor and method of manufacturing rotor for the sameFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →