Inventor · disambiguated record
Shoji Ohiwa
Also filed as: OHIWA SHOJI
17 granted patents·10 pending applications·242 citations·filing 2001–2008
94Inventor score
Top patents by PatentIndex Score
27 records- 0191US7649298B2Claw teeth type electric rotary machine and manufacturing method for statorsHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Jan 19, 2010·21 cites·13 claims
- 0290US6703803B2Fan motor driving circuitJAPAN SERVO·Filed 2002·Granted Mar 9, 2004·55 cites·3 claims
- 0389US6552453B2Magnetic pole position detector for an electric motorJAPAN SERVO·Filed 2001·Granted Apr 22, 2003·51 cites·26 claims
- 0486US7626301B2Electric rotating machine having permanent magnets and method of manufacturing teeth portions of the stator iron coreJAPAN SERVO·Filed 2005·Granted Dec 1, 2009·12 cites·7 claims
- 0586US6762526B2Multi-phase flat-type PM stepping motor and driving circuit thereofJAPAN SERVO·Filed 2002·Granted Jul 13, 2004·35 cites·10 claims
- 0677US7714466B2Claw-teeth-type rotating electrical machineHITACHI IND EQUIPMENT SYS·Filed 2007·Granted May 11, 2010·8 cites·7 claims
- 0775US7791244B2Multiphase claw-pole type electric rotary machine, cogging torque adjustment system of the same, generator system, and motor systemHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Sep 7, 2010·7 cites·18 claims
- 0874US7592734B2Three-phase permanent magnet brushless motorHITACHI IND EQUIPMENT SYS·Filed 2006·Granted Sep 22, 2009·7 cites·4 claims
- 0968US7068001B2Motor control systemJAPAN SERVO·Filed 2005·Granted Jun 27, 2006·7 cites·7 claims
- 1066US7605517B2Claw pole rotating electric machineHITACHI IND EQUIPMENT SYS·Filed 2006·Granted Oct 20, 2009·4 cites·7 claims
- 1166US6710504B2Brushless DC motorJAPAN SERVO·Filed 2002·Granted Mar 23, 2004·16 cites·6 claims
- 1264US7385321B2Motor having shifted teeth of pressed powder constructionJAPAN SERVO·Filed 2006·Granted Jun 10, 2008·3 cites·7 claims
- 1351US2009108713A1Outer Rotor Type Hybrid Stepping MotorJAPAN SERVO·Filed 2008·Application pending·0 cites
- 1448US7446441B2Outer rotor type hybrid stepping motorJAPAN SERVO·Filed 2004·Granted Nov 4, 2008·3 cites·2 claims
- 1547US6954014B2Motor with frequency generator and office automation equipment using sameJAPAN SERVO·Filed 2004·Granted Oct 11, 2005·6 cites·8 claims
- 1647US2008038122A1Electric axial flow pumpKIKUCHI SATOSHI·Filed 2007·Application pending·0 cites
- 1745US7339292B2Motor having shifted teeth of pressed powder constructionJAPAN SERVO·Filed 2004·Granted Mar 4, 2008·2 cites·6 claims
- 1844US7250698B2Multi-phase claw-pole type rotary machineJAPAN SERVO·Filed 2005·Granted Jul 31, 2007·0 cites·12 claims
- 1943USD572660SClaw teeth motor coreHITACHI IND EQUIPMENT SYS·Filed 2006·Granted Jul 8, 2008·5 cites·1 claims
- 2042US2007152522A1Rotating Electrical Machine with a Transmission and a Driving Apparatus Using the SameENOMOTO YUJI·Filed 2007·Application pending·0 cites
- 2142US2007145854A1MotorENOMOTO YUJI·Filed 2006·Application pending·0 cites
- 2240US2006066159A1Fluid-passage built-in type electric rotating machineENOMOTO YUJI·Filed 2005·Application pending·0 cites
- 2339US2005116579A1Motor for blowersJAPAN SERVO·Filed 2004·Application pending·0 cites
- 2435US2007241644A1Single-phase motorKAKUGAWA SHIGERU·Filed 2007·Application pending·0 cites
- 2534US2004075407A1Brushless DC motorFiled 2003·Application pending·0 cites
- 2633US2008018289A1Single-phase position sensorless permanent magnet motor control apparatusTAJIMA FUMIO·Filed 2007·Application pending·0 cites
- 2729US2008018194A1Claw-pole type singel-phase motor, claw-pole type single-phase motor system and electric pump, electric fan and vehicle provided with claw-pole type single-phase motorKAKUGAWA SHIGERU·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →