Inventor · disambiguated record
Motoharu Ishikawa
Also filed as: ISHIKAWA MOTOHARU
15 granted patents·8 pending applications·239 citations·filing 1993–2023
92Inventor score
Files withIDEMITSU KOSAN CO18TESHIMA KAZUHIRO2ISHIKAWA MOTOHARU1KATAFUCHI TADASHI1YAMASAKI HIROTAKA1
Top patents by PatentIndex Score
23 records- 0189US6844398B2Ethylenic copolymer, composition containing said copolymer, and ethylenic copolymer filmIDEMITSU KOSAN CO·Filed 2002·Granted Jan 18, 2005·30 cites·3 claims
- 0289US6464898B1Fluorescence conversion medium and display device comprising itIDEMITSU KOSAN CO·Filed 1999·Granted Oct 15, 2002·75 cites·8 claims
- 0386US11041132B2Lubricating oil composition, internal combustion engine, and method for lubricating internal combustion engineIDEMITSU KOSAN CO·Filed 2017·Granted Jun 22, 2021·2 cites·14 claims
- 0486US6641755B2Fluorescence conversion medium and display device comprising itIDEMITSU KOSAN CO·Filed 2002·Granted Nov 4, 2003·34 cites·1 claims
- 0586US6441116B1Ethylenic copolymer, composition containing said copolymer, and ethylenic copolymer filmIDEMITSU KOSAN CO·Filed 1999·Granted Aug 27, 2002·51 cites·2 claims
- 0681US8557751B2Lubricant compositionYAMASAKI HIROTAKA·Filed 2008·Granted Oct 15, 2013·7 cites·5 claims
- 0776US9023191B2Lubricant composition for an internal combustion engine and method for lubricating an internal combustion engineTESHIMA KAZUHIRO·Filed 2011·Granted May 5, 2015·2 cites·10 claims
- 0876US6521671B1Micelle dispersion and method for preparation thereofIDEMITSU KOSAN CO·Filed 2000·Granted Feb 18, 2003·8 cites·28 claims
- 0968US5378274AColor filter, method for manufacture thereof and liquid crystal projector using said color filterIDEMITSU KOSAN CO·Filed 1993·Granted Jan 3, 1995·28 cites·5 claims
- 1067US7960318B2Lubricating oil composition for internal combustion engineIDEMITSU KOSAN CO·Filed 2005·Granted Jun 14, 2011·2 cites·5 claims
- 1157US2025092328A1Lubricating oil composition for two-wheeled motor vehiclesIDEMITSU KOSAN CO·Filed 2023·Application pending·0 cites
- 1253US11905486B2Viscosity index improver composition and lubricating oil compositionIDEMITSU KOSAN CO·Filed 2020·Granted Feb 20, 2024·0 cites·8 claims
- 1348US8129319B2Lubricating compositionKATAFUCHI TADASHI·Filed 2006·Granted Mar 6, 2012·0 cites·15 claims
- 1447US2010218740A1Lubricant compositionIDEMITSU KOSAN CO·Filed 2008·Application pending·0 cites
- 1547US2011003723A1Lubricant compositionIDEMITSU KOSAN CO·Filed 2009·Application pending·0 cites
- 1645US9023190B2Lubricant composition for an internal combustion engine and method for lubricating an internal combustion engineTESHIMA KAZUHIRO·Filed 2011·Granted May 5, 2015·0 cites·9 claims
- 1745US2019024009A1Lubricating oil composition and method for producing lubricating oil compositionIDEMITSU KOSAN CO·Filed 2017·Application pending·0 cites
- 1844US10301570B2Lubricating oil composition for internal combustion engineIDEMITSU KOSAN CO·Filed 2016·Granted May 28, 2019·0 cites·21 claims
- 1943US2021371767A1Lubricant oil composition for internal combustion engines and method for producing same, and method for preventing pre-ignitionIDEMITSU KOSAN CO·Filed 2019·Application pending·0 cites
- 2042US8580719B2Lubricating oil composition for internal combustion engineISHIKAWA MOTOHARU·Filed 2007·Granted Nov 12, 2013·0 cites·10 claims
- 2142US2003087968A1Micelle dispersion and process for producing the micelle dispersionIDEMITSU KOSAN CO·Filed 2002·Application pending·0 cites
- 2241US2008161215A1Additive For LubricantIDEMITSU KOSAN CO·Filed 2005·Application pending·0 cites
- 2340US2013023456A1Lubricant composition for an internal combustion engineIDEMITSU KOSAN CO·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →