Inventor · disambiguated record
Yoichi Ishikawa
Also filed as: ISHIKAWA YOICHI
24 granted patents·5 pending applications·181 citations·filing 1980–2023
95Inventor score
Top patents by PatentIndex Score
29 records- 0178US7028997B2Vibration damping toolMITSUBISHI MATERIALS CORP·Filed 2002·Granted Apr 18, 2006·23 cites·13 claims
- 0272US10085390B2Backpack type blowing apparatusMARUYAMA MFG CO·Filed 2017·Granted Oct 2, 2018·2 cites·4 claims
- 0371US6992840B2Photographing lensNIDEC COPAL CORP·Filed 2003·Granted Jan 31, 2006·13 cites·19 claims
- 0471US6777881B2Power supply apparatus for generating plasmaKYOSAN ELECTRIC MFG·Filed 2002·Granted Aug 17, 2004·28 cites·8 claims
- 0570US10480427B2Choke valve structureMARUYAMA MFG CO·Filed 2016·Granted Nov 19, 2019·1 cites·20 claims
- 0668US7143144B2System, method and computer readable medium for certifying release of electronic information on an internetRICOH KK·Filed 2000·Granted Nov 28, 2006·13 cites·56 claims
- 0766US4902962ADetection of the surface of a liquid or foam including moisture inhibitingABLE CORP·Filed 1988·Granted Feb 20, 1990·23 cites·8 claims
- 0862US8586025B2Method of inhibiting methanogenesisHATANO ISAMI·Filed 2011·Granted Nov 19, 2013·2 cites·5 claims
- 0957US11162445B2VehicleSUBARU CORP·Filed 2021·Granted Nov 2, 2021·0 cites·11 claims
- 1056US6980369B2Zoom lensNIDEC COPAL CORP·Filed 2004·Granted Dec 27, 2005·5 cites·15 claims
- 1156US2022064582A1Perfusion culture apparatus and centrifugal separatorABLE CORP·Filed 2019·Application pending·0 cites
- 1255US12466385B2Control apparatus for hybrid vehicleSUBARU CORP·Filed 2023·Granted Nov 11, 2025·0 cites·17 claims
- 1355USD806330SBackpack blowerMARUYAMA MFG CO·Filed 2016·Granted Dec 26, 2017·7 cites·1 claims
- 1454US4376681AMethod of measuring carbon dioxide in a liquid or gasORIENTAL YEAST CO LTD·Filed 1980·Granted Mar 15, 1983·13 cites·1 claims
- 1551US11075497B2Laser device and internal combustion engineHAGITA KENTAROH·Filed 2018·Granted Jul 27, 2021·0 cites·20 claims
- 1651US2021139838A1Cell stimulating apparatus, cell stimulating method, culture product manufacturing method, isolated cell manufacturing method, and cell growing methodABLE CORP·Filed 2021·Application pending·0 cites
- 1749US7814325B2System, method and computer readable medium for certifying release of electronic information on an internetRICOH KK·Filed 2006·Granted Oct 12, 2010·0 cites·12 claims
- 1847US6126365ABoring toolMITSUBISHI MATERIALS CORP·Filed 1999·Granted Oct 3, 2000·11 cites·3 claims
- 1944US4579631AMeasurement of oxygen concentrationISHIKAWA SEISAKUSHO KK·Filed 1983·Granted Apr 1, 1986·12 cites·18 claims
- 2042US5626824AAutoclaveABLE CORP·Filed 1995·Granted May 6, 1997·13 cites·2 claims
- 2141US2015144830A1Heat resistant inorganic fiberNICHIAS CORP·Filed 2013·Application pending·0 cites
- 2239US10300539B2Rotating-cutting-edge-type milling tool and cutting method using sameUNIV NAGOYA NAT UNIV CORP·Filed 2015·Granted May 28, 2019·0 cites·9 claims
- 2338US2014072535A1Method of inhibiting methanogenesisHATANO ISAMI·Filed 2013·Application pending·0 cites
- 2437US2015144828A1Si-Mg-BASED INORGANIC FIBERS AND COMPOSITION CONTAINING THE SAMEIWATA KOJI·Filed 2012·Application pending·0 cites
- 2535US8888977B2Combination electrode for ion concentration measurementISHIKAWA YOICHI·Filed 2011·Granted Nov 18, 2014·0 cites·4 claims
- 2631US5794258ASystem for transmitting figure data within a retrievable range according to the date and time of updateTOKYO GAS CO LTD·Filed 1995·Granted Aug 11, 1998·7 cites·34 claims
- 2730US6235189B1Method of supplying dissolved carbon dioxide to plants in an aqueous mediumABLE CORP·Filed 1994·Granted May 22, 2001·2 cites·8 claims
- 2830US4460451ASteam-sterilizable carbon dioxide sensorORIENTAL YEAST CO LTD·Filed 1983·Granted Jul 17, 1984·2 cites·3 claims
- 2920US5605611ACarbon dioxide-generating electrode apparatusORIENTAL SANGYO CO LTD·Filed 1995·Granted Feb 25, 1997·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →