Inventor · disambiguated record
Keizo Otani
Also filed as: OTANI KEIZO
8 granted patents·4 pending applications·40 citations·filing 2000–2005
84Inventor score
Files withNISSAN MOTOR12
Top patents by PatentIndex Score
12 records- 0183US7462128B2Rolling element and a process for producing the rolling elementNISSAN MOTOR·Filed 2005·Granted Dec 9, 2008·8 cites·23 claims
- 0279US6569267B1High bearing pressure-resistant memberNISSAN MOTOR·Filed 2000·Granted May 27, 2003·13 cites·19 claims
- 0360US7070335B2Rolling bearingNISSAN MOTOR·Filed 2002·Granted Jul 4, 2006·2 cites·21 claims
- 0451US6878218B2High strength gear and method of producing the sameNISSAN MOTOR·Filed 2002·Granted Apr 12, 2005·4 cites·17 claims
- 0546US6814685B2Rolling 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
- 0646US6565477B2Power roller assembly for a toroidal-type continuously variable transmissionNISSAN MOTOR·Filed 2001·Granted May 20, 2003·3 cites·23 claims
- 0744US2007037033A1Separator for fuel cell, fuel cell stack, method for manufacturing separator for fuel cell, and fuel cell vehicleNISSAN MOTOR·Filed 2004·Application pending·0 cites
- 0844US2005045248A1Contact pressure-resistant member and method of making the sameNISSAN MOTOR·Filed 2004·Application pending·0 cites
- 0942US6858096B2Rolling element for a continuously variable transmission (CVT), a CVT using the rolling element and a method for producing the rolling elementNISSAN MOTOR·Filed 2001·Granted Feb 22, 2005·2 cites·20 claims
- 1042US2005045249A1Bearing pressure-resistant member and process for making the sameNISSAN MOTOR·Filed 2004·Application pending·0 cites
- 1140US6962441B2Rotary member and production processNISSAN MOTOR·Filed 2002·Granted Nov 8, 2005·0 cites·20 claims
- 1239US2003075244A1Bearing pressure-resistant member and process for making the sameNISSAN MOTOR·Filed 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Keizo Otani 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 →