Inventor · disambiguated record
Takeshi Kawai
Also filed as: KAWAI TAKESHI
47 granted patents·8 pending applications·835 citations·filing 1984–2025
98Inventor score
Files withNGK SPARK PLUG CO11KAWAI TAKESHI9MITSUBISHI GAS CHEMICAL CO9FUJIFILM BUSINESS INNOVATION CORP5FUJI XEROX CO LTD4
Top patents by PatentIndex Score
55 records- 0196US5279886AAlumina sintered bodyNGK SPARK PLUG CO·Filed 1991·Granted Jan 18, 1994·414 cites·8 claims
- 0293US8538287B2Cleaning member for image forming apparatus, charging device, unit for image forming apparatus, process cartridge, and image forming apparatusKAWAI TAKESHI·Filed 2011·Granted Sep 17, 2013·9 cites·11 claims
- 0388US8467697B2Cleaning member for image forming apparatus, charging device, unit for image forming apparatus, process cartridge, and image forming apparatusKAWAI TAKESHI·Filed 2010·Granted Jun 18, 2013·5 cites·15 claims
- 0487US7084379B2Control apparatus for gas sensorNGK SPARK PLUG CO·Filed 2005·Granted Aug 1, 2006·12 cites·7 claims
- 0583US8515305B2Cleaning unit including an elastic member spirally wound around and fixed to a shaftNONAKA AKIHIRO·Filed 2011·Granted Aug 20, 2013·4 cites·11 claims
- 0683US4953002ASemiconductor device housing with magnetic field protectionHONEYWELL INC·Filed 1989·Granted Aug 28, 1990·74 cites·5 claims
- 0782US5925814AElectrolytic exhaust sensor with diffusion layer inhibiting formation of a liquid phaseNGK SPARK PLUG CO·Filed 1998·Granted Jul 20, 1999·61 cites·10 claims
- 0879US9014590B2Cleaning member, charging device assembly, and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Apr 21, 2015·2 cites·11 claims
- 0977US8401421B2Charging device, method for producing charging device, process cartridge, and image forming apparatusKAWAI TAKESHI·Filed 2011·Granted Mar 19, 2013·2 cites·20 claims
- 1076US6120677ATemperature control for all range oxygen sensorNGK SPARK PLUG CO·Filed 1997·Granted Sep 19, 2000·47 cites·10 claims
- 1175US8526845B2Cleaning member for image forming apparatus including a core and an elastic layer, charging device, unit for image forming apparatus, process cartridge, and image forming apparatusNONAKA AKIHIRO·Filed 2011·Granted Sep 3, 2013·2 cites·19 claims
- 1275US8188326B2Process for producing adamantaneKAWAI TAKESHI·Filed 2009·Granted May 29, 2012·2 cites·5 claims
- 1375US7019173B2Fluorine compound and fluorinating agent comprising the compoundMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Mar 28, 2006·6 cites·8 claims
- 1473US9201040B2Gas sensorYAMADA YUICHI·Filed 2011·Granted Dec 1, 2015·2 cites·5 claims
- 1572US9429541B2Gas sensor element, gas sensor and control system of gas sensorYOSHIDA SHIN·Filed 2011·Granted Aug 30, 2016·3 cites·8 claims
- 1671US6495724B1Catalysts for producing methylamines and method for manufacturing the sameMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Dec 17, 2002·8 cites·1 claims
- 1770US12360492B2Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Granted Jul 15, 2025·0 cites·20 claims
- 1870US8989618B2Cleaning member for image forming apparatus, charging device, unit for image forming apparatus, process cartridge, and image forming apparatusKAWAI TAKESHI·Filed 2012·Granted Mar 24, 2015·1 cites·10 claims
- 1970US6099717AMethod of and apparatus for detecting a deteriorated condition of a wide range air-fuel ratio sensorNGK SPARK PLUG CO·Filed 1997·Granted Aug 8, 2000·28 cites·3 claims
- 2068US2025362625A1Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 2167US8513961B2Detection method for defect of sensorFUJITA TOMOHISA·Filed 2010·Granted Aug 20, 2013·2 cites·9 claims
- 2267US5433830AMethod of activating zirconia oxygen sensorNGK SPARK PLUG CO·Filed 1994·Granted Jul 18, 1995·30 cites·7 claims
- 2367US2025362626A1Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 2465US11407440B1Steering column assembly with protective clipNISSAN NORTH AMERICA INC·Filed 2021·Granted Aug 9, 2022·0 cites·20 claims
- 2565US7951277B2Gas sensor and method for manufacturing the sameNGK SPARK PLUG CO·Filed 2006·Granted May 31, 2011·2 cites·12 claims
- 2664US5130775AAmorphous photo-detecting element with spatial filterYAMATAKE HONEYWELL CO LTD·Filed 1990·Granted Jul 14, 1992·32 cites·16 claims
- 2762US7964073B2Air fuel ratio detection apparatusNGK SPARK PLUG CO·Filed 2006·Granted Jun 21, 2011·1 cites·3 claims
- 2860US5700367AMethod and apparatus for controlling the energizing of a heater in an oxygen sensorNGK SPARK PLUG CO·Filed 1996·Granted Dec 23, 1997·24 cites·13 claims
- 2959US6710009B2Catalysts for producing methylamines and method for manufacturing the sameMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Mar 23, 2004·2 cites·6 claims
- 3056US7297821B2Fluorine compound and fluorinating agent comprising the compoundMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Nov 20, 2007·0 cites·1 claims
- 3155US6590124B1Catalysts for producing methylamines and method for manufacturing the sameMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Jul 8, 2003·1 cites·3 claims
- 3252US8891999B2Cleaning member and charging device, unit for image forming apparatus and process cartridge, and image forming apparatusKAWAI TAKESHI·Filed 2012·Granted Nov 18, 2014·0 cites·14 claims
- 3351US9723387B2Optical signal processing device with an array waveguide coupled to a slab waveguide with two arcsNIPPON TELEGRAPH & TELEPHONE·Filed 2013·Granted Aug 1, 2017·0 cites·13 claims
- 3451US2025102932A1Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
- 3550US8266953B2Method and apparatus for detecting abnormality of nitrogen oxide purifying catalystSASAKI HISASHI·Filed 2009·Granted Sep 18, 2012·0 cites·8 claims
- 3650US8127594B2Gas sensorKAWAI TAKESHI·Filed 2009·Granted Mar 6, 2012·0 cites·9 claims
- 3749US6510307B2Transfer device, image-forming apparatus using the same and method for producing transferring memberFUJI XEROX CO LTD·Filed 2001·Granted Jan 21, 2003·4 cites·41 claims
- 3849US6472575B2Process for producing adamantaneMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Oct 29, 2002·1 cites·4 claims
- 3948US2020310267A1Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2019·Application pending·0 cites
- 4047US8412069B2Charging unit, manufacturing method for charging unit, process cartridge and image forming deviceKAWAI TAKESHI·Filed 2010·Granted Apr 2, 2013·0 cites·16 claims
- 4147US4724716AJoint mechanismKOBE STEEL LTD·Filed 1984·Granted Feb 16, 1988·16 cites·22 claims
- 4247US2011112323A1Process for production of high-purity trimellitic acidMITSUBISHI GAS CHEMICAL CO·Filed 2009·Application pending·0 cites
- 4347US2024118637A1Electrophotographic photoreceptor, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 4446US9645321B2Optical signal processing deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2013·Granted May 9, 2017·0 cites·21 claims
- 4546US5976350AMethod of and apparatus for detecting an activated condition of a wide range air-fuel ratio sensorNGK SPARK PLUG CO·Filed 1997·Granted Nov 2, 1999·12 cites·4 claims
- 4645US2020117105A1Image forming apparatus and process cartridgeFUJI XEROX CO LTD·Filed 2019·Application pending·0 cites
- 4744US9182700B2Cleaning member for image forming apparatus, charging device, unit for image forming apparatus, process cartridge, image forming apparatusKANO FUYUKI·Filed 2012·Granted Nov 10, 2015·0 cites·14 claims
- 4841US7518025B2Process for producing alkyl aromatic compoundMITSUBISHI GAS CHEMICAL CO·Filed 2003·Granted Apr 14, 2009·0 cites·15 claims
- 4941US5315100APhotoelectric conversion apparatus for detecting movement of object with spatial filter electrodeYAMATAKE HONEYWELL CO LTD·Filed 1992·Granted May 24, 1994·8 cites·4 claims
- 5041US4774000ASubmicron disc filtersTSUCHIYA SEISAKUSHO·Filed 1986·Granted Sep 27, 1988·12 cites·30 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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