Inventor · disambiguated record
Norio Ichikawa
Also filed as: ICHIKAWA NORIO · UENO SADAYASU
29 granted patents·3 pending applications·933 citations·filing 1976–2022
97Inventor score
Files withHITACHI LTD21HAMAMATSU PHOTONICS KK8HITACHI CAR ENG CO LTD1HITACHI LTD AND HITACHI CAR EN1HONDA YOSHINORI1
Top patents by PatentIndex Score
32 records- 0197US5417312ASemiconductor acceleration sensor and vehicle control system using the sameHITACHI LTD·Filed 1993·Granted May 23, 1995·161 cites·26 claims
- 0295US6877383B2Capacitive type pressure sensorHITACHI LTD·Filed 2002·Granted Apr 12, 2005·61 cites·2 claims
- 0395US6167761B1Capacitance type pressure sensor with capacitive elements actuated by a diaphragmHITACHI LTD AND HITACHI CAR EN·Filed 1998·Granted Jan 2, 2001·130 cites·10 claims
- 0491US5616844ACapacitance type acceleration sensorHITACHI LTD·Filed 1994·Granted Apr 1, 1997·74 cites·24 claims
- 0590US6051853ASemiconductor pressure sensor including reference capacitor on the same substrateHITACHI LTD·Filed 1997·Granted Apr 18, 2000·74 cites·27 claims
- 0688US5243861ACapacitive type semiconductor accelerometerHITACHI LTD·Filed 1991·Granted Sep 14, 1993·118 cites·11 claims
- 0783US6564643B1Capacitive pressure sensorHITACHI LTD·Filed 1999·Granted May 20, 2003·52 cites·5 claims
- 0878US4644797ASemiconductor pressure transducerHITACHI LTD·Filed 1985·Granted Feb 24, 1987·40 cites·7 claims
- 0977US9240313B2Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generationHAMAMATSU PHOTONICS KK·Filed 2013·Granted Jan 19, 2016·3 cites·18 claims
- 1074US4164462AOxygen sensorHITACHI LTD·Filed 1977·Granted Aug 14, 1979·23 cites·5 claims
- 1167US6377056B1Electrostatic capacitance type dynamical quantity sensorHITACHI LTD·Filed 1999·Granted Apr 23, 2002·27 cites·5 claims
- 1267US4127464ASensor for detecting oxygen concentrationHITACHI LTD·Filed 1977·Granted Nov 28, 1978·19 cites·5 claims
- 1367US2025104995A1Production method for uv light-emitting body, uv light-emitting body, and uv light sourceHAMAMATSU PHOTONICS KK·Filed 2022·Application pending·0 cites
- 1463US11887837B2Ultraviolet light generation target, method for manufacturing ultraviolet light generation target, and electron-beam-excited ultraviolet light sourceHAMAMATSU PHOTONICS KK·Filed 2019·Granted Jan 30, 2024·0 cites·9 claims
- 1563US5032248AGas sensor for measuring air-fuel ratio and method of manufacturing the gas sensorHITACHI LTD·Filed 1989·Granted Jul 16, 1991·21 cites·29 claims
- 1662US8895947B2Ultraviolet light generating target, electron-beam-excited ultraviolet light source, and method for producing ultraviolet light generating targetHONDA YOSHINORI·Filed 2012·Granted Nov 25, 2014·1 cites·6 claims
- 1758US4915814ASensor for measurement of air/fuel ratio and method of manufacturingHITACHI LTD·Filed 1988·Granted Apr 10, 1990·19 cites·24 claims
- 1857US5389198AStructure and method of manufacturing the sameHITACHI LTD·Filed 1991·Granted Feb 14, 1995·28 cites·20 claims
- 1957US4058787ATemperature sensorHITACHI LTD·Filed 1976·Granted Nov 15, 1977·14 cites·6 claims
- 2056US10079141B2Ultraviolet light-generating target and method for manufacturing the same, and electron beam-excited ultraviolet light sourceHAMAMATSU PHOTONICS KK·Filed 2017·Granted Sep 18, 2018·0 cites·9 claims
- 2154US7166830B2Light detecting sensorHAMAMATSU PHOTONICS KK·Filed 2003·Granted Jan 23, 2007·5 cites·5 claims
- 2254US4944274AAir-fuel ratio control apparatus for internal combustion enginesHITACHI LTD·Filed 1989·Granted Jul 31, 1990·10 cites·8 claims
- 2354US2023348783A1Method of manufacturing light emitter, light emitter and ultraviolet light sourceHAMAMATSU PHOTONICS KK·Filed 2021·Application pending·0 cites
- 2452US6941815B2Sensor with built-in circuits and pressure detector using the sameHITACHI CAR ENG CO LTD·Filed 2002·Granted Sep 13, 2005·6 cites·5 claims
- 2549US4909223AAir-fuel ratio control apparatus for multicylinder engineHITACHI LTD·Filed 1988·Granted Mar 20, 1990·10 cites·15 claims
- 2648US10381215B2Target for ultraviolet light generation, and method for manufacturing sameHAMAMATSU PHOTONICS KK·Filed 2016·Granted Aug 13, 2019·0 cites·8 claims
- 2748US5676851AMethod of making a capacitance type acceleration sensorHITACHI LTD·Filed 1996·Granted Oct 14, 1997·11 cites·3 claims
- 2847US4670730APressure sensor and a method of arranging a pressure sensorHITACHI LTD·Filed 1985·Granted Jun 2, 1987·13 cites·16 claims
- 2946US2022025258A1Uv-emitting phosphor, method for producing same, and uv excitation light sourceHAMAMATSU PHOTONICS KK·Filed 2019·Application pending·0 cites
- 3041US4200511ADevice for electrochemically measuring the concentration of oxygen in combustion gasesHITACHI LTD·Filed 1978·Granted Apr 29, 1980·7 cites·13 claims
- 3135US4657660AApparatus for sensing oxygen concentrationHITACHI LTD·Filed 1985·Granted Apr 14, 1987·5 cites·11 claims
- 3230US4799018AAir fuel ratio measuring systemHITACHI LTD·Filed 1987·Granted Jan 17, 1989·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →