Inventor · disambiguated record
Iwao Yokoyama
Also filed as: YOKOYAMA IWAO
4 granted patents·2 pending applications·24 citations·filing 1983–2009
70Inventor score
Top patents by PatentIndex Score
6 records- 0144US6062539AValve gear and coupling mechanism for coupling the valve stem of the valve and the driving shaft of actuatorTOKO VALEX CO LTD·Filed 1997·Granted May 16, 2000·15 cites·22 claims
- 0242US4663116ANuclear reactorHITACHI LTD·Filed 1983·Granted May 5, 1987·8 cites·9 claims
- 0340US2009244711A1Imaging filterFUJINON CORP·Filed 2009·Application pending·0 cites
- 0433US2006073273A1Method for manufacturing optical elementsFUJINON SANO CORP·Filed 2005·Application pending·0 cites
- 0530US7196854B2Complex optical element and method for manufacturing thereofFUJINON SANO CORP·Filed 2004·Granted Mar 27, 2007·0 cites·8 claims
- 0627US4993454APiping branch structureHITACHI LTD·Filed 1986·Granted Feb 19, 1991·1 cites·6 claims
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