Inventor · disambiguated record
Kazuaki Utsumi
Also filed as: UTSUMI KAZUAKI
36 granted patents·2 pending applications·1,310 citations·filing 1974–2018
98Inventor score
Top patents by PatentIndex Score
38 records- 0196US4290041AVoltage dependent nonlinear resistorNIPPON ELECTRIC CO·Filed 1979·Granted Sep 15, 1981·83 cites·11 claims
- 0294US10507734B2Battery state estimating apparatusTOYOTA MOTOR CO LTD·Filed 2018·Granted Dec 17, 2019·8 cites·4 claims
- 0394US6188127B1Semiconductor packing stack module and method of producing the sameNEC CORP·Filed 1996·Granted Feb 13, 2001·226 cites·12 claims
- 0493US6091310AMulti-layer printed board with an inductor providing a high impedance at high frequencyNEC CORP·Filed 1998·Granted Jul 18, 2000·151 cites·4 claims
- 0592US4766671AMethod of manufacturing ceramic electronic deviceNEC CORP·Filed 1986·Granted Aug 30, 1988·79 cites·9 claims
- 0692US4567542AMultilayer ceramic substrate with interlayered capacitorNEC CORP·Filed 1984·Granted Jan 28, 1986·69 cites·7 claims
- 0791US5830563AInterconnection structures and method of making sameNEC CORP·Filed 1996·Granted Nov 3, 1998·85 cites·9 claims
- 0886US10649036B2Battery state estimating apparatusTOYOTA MOTOR CO LTD·Filed 2018·Granted May 12, 2020·3 cites·8 claims
- 0986US8722241B2Packaged battery, stacked battery assembly, and film-covered batteryMIZUTA MASATOMO·Filed 2008·Granted May 13, 2014·6 cites·9 claims
- 1085US4757235AElectroluminescent device with monolithic substrateNEC CORP·Filed 1986·Granted Jul 12, 1988·55 cites·12 claims
- 1185US4536435AMultilayer substrate including layers of an alumina and borosilicate-lead-glass ceramic materialNIPPON ELECTRIC CO·Filed 1982·Granted Aug 20, 1985·59 cites·5 claims
- 1282US6130111APackaged semiconductor device and method of manufacturing the sameNEC CORP·Filed 1999·Granted Oct 10, 2000·57 cites·2 claims
- 1382US4723135APrinter using ink ballsNEC CORP·Filed 1987·Granted Feb 2, 1988·31 cites·14 claims
- 1481US4724283AMulti-layer circuit board having a large heat dissipationNEC CORP·Filed 1986·Granted Feb 9, 1988·56 cites·7 claims
- 1580US4574255AMMC Substrate including capacitors having perovskite structure dielectric and electrical devices including MMC substrateNEC CORP·Filed 1983·Granted Mar 4, 1986·45 cites·37 claims
- 1679US10718817B2Battery state estimating apparatusOGUMA YASUMASA·Filed 2017·Granted Jul 21, 2020·4 cites·9 claims
- 1779US5952712APackaged semiconductor device and method of manufacturing the sameNEC CORP·Filed 1997·Granted Sep 14, 1999·49 cites·13 claims
- 1878US8692506B2Charging apparatus and charging/discharging apparatus including temperature adjusting element of secondary battery for bufferingSAITO TAKASHI·Filed 2007·Granted Apr 8, 2014·16 cites·17 claims
- 1977US5545281AMethod of bonding circuit boardsNEC CORP·Filed 1994·Granted Aug 13, 1996·50 cites·11 claims
- 2075US5318651AMethod of bonding circuit boardsNEC CORP·Filed 1992·Granted Jun 7, 1994·46 cites·1 claims
- 2174US4756808APiezoelectric transducer and process for preparation thereofNEC CORP·Filed 1986·Granted Jul 12, 1988·29 cites·29 claims
- 2267US4650777AMethod for preparing aluminum nitride ceramics having superior thermal conductivitiesNEC CORP·Filed 1985·Granted Mar 17, 1987·19 cites·12 claims
- 2366US9780593B2Electric cells for battery pack, battery control system, and battery control methodNEC CORP·Filed 2013·Granted Oct 3, 2017·2 cites·3 claims
- 2466US8228040B2Electric cells for battery pack, battery control system, and battery control methodUTSUMI KAZUAKI·Filed 2007·Granted Jul 24, 2012·9 cites·5 claims
- 2565US9653715B2Packaged battery, stacked battery assembly, and film-covered batteryMIZUTA MASATOMO·Filed 2014·Granted May 16, 2017·0 cites·9 claims
- 2657US5079199AMethod of manufacturing dielectric ceramic compositions of lead-based perovskiteNEC CORP·Filed 1990·Granted Jan 7, 1992·17 cites·7 claims
- 2756US3969252ADielectric ceramic compositions of BaTiO3 -BaZrO3 -CaTiO3 systemNIPPON ELECTRIC CO·Filed 1974·Granted Jul 13, 1976·12 cites·1 claims
- 2855US11121386B2Temperature estimating apparatusTOYOTA MOTOR CO LTD·Filed 2018·Granted Sep 14, 2021·0 cites·4 claims
- 2948US10656216B2Battery state estimating apparatusTOYOTA MOTOR CO LTD·Filed 2018·Granted May 19, 2020·0 cites·6 claims
- 3047US4791078ACeramic composition with improved electrical and mechanical propertiesNEC CORP·Filed 1987·Granted Dec 13, 1988·7 cites·2 claims
- 3147US4681667AMethod of producing electrostrictive effect elementNEC CORP·Filed 1986·Granted Jul 21, 1987·12 cites·18 claims
- 3243US4325763AMethod of manufacturing ceramic capacitorsNIPPON ELECTRIC CO·Filed 1980·Granted Apr 20, 1982·8 cites·5 claims
- 3343US4236928ACeramic compositionsNIPPON ELECTRIC CO·Filed 1979·Granted Dec 2, 1980·7 cites·3 claims
- 3443US2012119707A1Electric cells for battery pack, battery control system, and battery control methodUTSUMI KAZUAKI·Filed 2012·Application pending·0 cites
- 3542US2019064278A1Impedance estimating apparatusTOYOTA MOTOR CO LTD·Filed 2018·Application pending·0 cites
- 3633US4783358ACeramic wiring substrateNEC CORP·Filed 1987·Granted Nov 8, 1988·6 cites·5 claims
- 3729US4030937ACeramic dielectric material having improved temperature stabilityNIPPON ELECTRIC CO·Filed 1976·Granted Jun 21, 1977·3 cites·8 claims
- 3827US5262369ADielectric ceramic compositionsNEC CORP·Filed 1990·Granted Nov 16, 1993·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →