Inventor · disambiguated record
Masayuki Nagasawa
Also filed as: NAGASAWA MASAYUKI
17 granted patents·10 pending applications·180 citations·filing 1995–2021
92Inventor score
Files withTOYOTA MOTOR CO LTD8HITACHI LTD7HITACHI GE NUCLEAR ENERGY LTD3HITACHI METALS LTD3RENESAS TECH CORP2
Top patents by PatentIndex Score
27 records- 0188US5772780APolishing agent and polishing methodHITACHI LTD·Filed 1995·Granted Jun 30, 1998·68 cites·22 claims
- 0286US6043155APolishing agent and polishing methodHITACHI LTD·Filed 1998·Granted Mar 28, 2000·56 cites·2 claims
- 0379US11108102B2CoolantARAI HIROYUKI·Filed 2019·Granted Aug 31, 2021·1 cites·8 claims
- 0477US6663468B2Method for polishing surface of semiconductor device substrateHITACHI LTD·Filed 2001·Granted Dec 16, 2003·18 cites·19 claims
- 0575US7333584B2Nuclear power plant and operation method thereofHITACHI GE NUCLEAR ENERGY LTD·Filed 2005·Granted Feb 19, 2008·4 cites·2 claims
- 0672US7970094B2Nuclear power plant and operation method thereofHITACHI GE NUCLEAR ENERGY LTD·Filed 2008·Granted Jun 28, 2011·2 cites·2 claims
- 0769US10160895B2Coolant composition, method of operating internal combustion engine using the same, and use of the sameTOYOTA MOTOR CO LTD·Filed 2015·Granted Dec 25, 2018·1 cites·10 claims
- 0869US6565424B2Method and apparatus for planarizing semiconductor deviceHITACHI LTD·Filed 2001·Granted May 20, 2003·13 cites·2 claims
- 0962US6777337B2Planarizing method of semiconductor wafer and apparatus thereofRENESAS TECH CORP·Filed 2001·Granted Aug 17, 2004·8 cites·22 claims
- 1061US7059132B2Steam generator feedwater control system for power plantHITACHI LTD·Filed 2005·Granted Jun 13, 2006·3 cites·11 claims
- 1157US11459938B2Internal combustion systemTOYOTA MOTOR CO LTD·Filed 2021·Granted Oct 4, 2022·0 cites·2 claims
- 1256US6589871B2Processing method, measuring method and producing method of semiconductor devicesHITACHI LTD·Filed 2001·Granted Jul 8, 2003·5 cites·6 claims
- 1352US10913883B2Coolant composition and method of operating internal combustion engine using the sameTOYOTA MOTOR CO LTD·Filed 2017·Granted Feb 9, 2021·0 cites·7 claims
- 1449US9896768B2Sealing member and method of manufacturing the sameHORIBA STEC CO LTD·Filed 2013·Granted Feb 20, 2018·0 cites·12 claims
- 1549US7026245B2Polishing agent and polishing methodRENESAS TECH CORP·Filed 2003·Granted Apr 11, 2006·1 cites·23 claims
- 1649US2020040246A1Coolant compositionTOYOTA MOTOR CO LTD·Filed 2019·Application pending·0 cites
- 1748US10899952B2Automotive engine coolant composition, automotive engine concentrated coolant composition, and method of operating internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Jan 26, 2021·0 cites·8 claims
- 1847US2010193089A1Hot-working tool steel having excellent toughness and high-temperature strength and method for production thereofHITACHI METALS LTD·Filed 2007·Application pending·0 cites
- 1944US10883031B2Automotive engine coolant composition, automotive engine concentrated coolant composition, and method of operating internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Jan 5, 2021·0 cites·10 claims
- 2044US2022082518A1Method of manufacturing mold, hot working machine, or die-casting machine thereofHITACHI METALS LTD·Filed 2021·Application pending·0 cites
- 2143US2019256757A1Coolant compositionKODAMA YASUAKI·Filed 2019·Application pending·0 cites
- 2241US2002068452A1Polishing agent and polishing methodFiled 2000·Application pending·0 cites
- 2341US2004048554A1Method for polishing surface of semiconductor device substrateHITACHI LTD·Filed 2003·Application pending·0 cites
- 2440US2019085230A1Coolant composition and method of operating internal combustion engine using the sameTOYOTA MOTOR CO LTD·Filed 2017·Application pending·0 cites
- 2539US2019031938A1Coolant composition for automobile engine and concentrated coolant composition for automobile engineTOYOTA MOTOR CO LTD·Filed 2017·Application pending·0 cites
- 2639US2019278883A1Method of predicting life of mold and method of manufacturing moldHITACHI METALS LTD·Filed 2018·Application pending·0 cites
- 2738US2016125965A1Power PlantHITACHI GE NUCLEAR ENERGY LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →