Inventor · disambiguated record
Eiji Hirai
Also filed as: HIRAI EIJI
10 granted patents·2 pending applications·129 citations·filing 1991–2018
88Inventor score
Top patents by PatentIndex Score
12 records- 0190US5116430AProcess for surface treatment titanium-containing metallic materialNIHON PARKERIZING·Filed 1991·Granted May 26, 1992·61 cites·15 claims
- 0281US5370364ATitanium alloy engine valve shaft structureFUJI VALVE·Filed 1994·Granted Dec 6, 1994·32 cites·8 claims
- 0373US10879086B2Substrate cleaning device, substrate cleaning apparatus, method for manufacturing cleaned substrate and substrate processing apparatusEBARA CORP·Filed 2018·Granted Dec 29, 2020·1 cites·13 claims
- 0465US10032655B2Substrate cleaning device, substrate cleaning apparatus, method for manufacturing cleaned substrate and substrate processing apparatusEBARA CORP·Filed 2014·Granted Jul 24, 2018·1 cites·7 claims
- 0560US7070335B2Rolling bearingNISSAN MOTOR·Filed 2002·Granted Jul 4, 2006·2 cites·21 claims
- 0648US5543029AProperties of the surface of a titanium alloy engine valveFUJI VALVE·Filed 1995·Granted Aug 6, 1996·11 cites·3 claims
- 0747US2015118944A1Polishing apparatus, method for attaching polishing pad, and method for replacing polishing padEBARA CORP·Filed 2014·Application pending·0 cites
- 0846US6814685B2Rolling element for a continuously variable transmission (CVT), a CVT using the rolling element and a process for producing the rolling elementNISSAN MOTOR·Filed 2001·Granted Nov 9, 2004·8 cites·27 claims
- 0940US6962441B2Rotary member and production processNISSAN MOTOR·Filed 2002·Granted Nov 8, 2005·0 cites·20 claims
- 1040US2005118441A1Automobile chassis members having high surface hardness and high corrosion resistanceNIHON PARKERIZING·Filed 2004·Application pending·0 cites
- 1137US6372345B1Composite particles for composite dispersion plating and method of plating therewithNIHON PARKERIZING·Filed 1998·Granted Apr 16, 2002·8 cites·18 claims
- 1233US6190789B1Slide memberNIHON PARKERIZING·Filed 1998·Granted Feb 20, 2001·5 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →