Inventor · disambiguated record
Isao Yokoyama
Also filed as: YOKOYAMA ISAO
17 granted patents·406 citations·filing 1975–2008
95Inventor score
Top patents by PatentIndex Score
17 records- 0197US4302200AProcess for extracting anthocyanin-type colors from natural productsCOCA COLA CO·Filed 1980·Granted Nov 24, 1981·53 cites·6 claims
- 0291US4816696AVariable-speed pumped-storage power generating systemHITACHI LTD·Filed 1987·Granted Mar 28, 1989·79 cites·4 claims
- 0386US4758808AImpedance element mounted on a pc boardTDK CORP·Filed 1987·Granted Jul 19, 1988·55 cites·8 claims
- 0484US8309149B2Packing method and corresponding covers for hydrogen-reduced water or food productionYOKOYAMA ISAO·Filed 2008·Granted Nov 13, 2012·5 cites·11 claims
- 0584US6386954B2Thread forming tap and threading methodTANOI MFG CO LTD·Filed 2001·Granted May 14, 2002·35 cites·3 claims
- 0683US4407000ACombined dipole and ferrite antennaTDK ELECTRONICS CO LTD·Filed 1981·Granted Sep 27, 1983·43 cites·6 claims
- 0781US4039417AElectrode assembly for use in cathodic protectionTDK ELECTRONICS CO LTD·Filed 1975·Granted Aug 2, 1977·25 cites·5 claims
- 0871US4169028ACathodic protectionTDK ELECTRONICS CO LTD·Filed 1978·Granted Sep 25, 1979·24 cites·12 claims
- 0970US5797710AThread forming tapTANOI MFG CO LTD·Filed 1996·Granted Aug 25, 1998·31 cites·16 claims
- 1056US4714908AElectromagnetic deflection-distortion correctorTDK CORP·Filed 1985·Granted Dec 22, 1987·10 cites·7 claims
- 1154US7831329B2Optimization method of deposition time and an optimization system of deposition timeSEIKO EPSON CORP·Filed 2007·Granted Nov 9, 2010·0 cites·9 claims
- 1250US7280884B2Optimization method of deposition time and an optimization system of deposition timeSEIKO EPSON CORP·Filed 2004·Granted Oct 9, 2007·2 cites·9 claims
- 1350US5396981AFlexible screw and transport apparatus comprising sameMITSUBISHI CABLE IND LTD·Filed 1993·Granted Mar 14, 1995·11 cites·18 claims
- 1449US4841267ADeflection apparatus for cathode ray tubeTDK CORP·Filed 1988·Granted Jun 20, 1989·7 cites·3 claims
- 1546US5090872AMethod of controlling the operation of a pump in a pumping installation by detecting counterflowHITACHI LTD·Filed 1989·Granted Feb 25, 1992·11 cites·5 claims
- 1643US5456115AMethod of counterflow through a pump and method of controlling the operation of a pump in a pumping installationHITACHI LTD·Filed 1993·Granted Oct 10, 1995·9 cites·4 claims
- 1739US5295573AFlexible screw and transport apparatus comprising sameMITSUBISHI CABLE IND LTD·Filed 1991·Granted Mar 22, 1994·6 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →