Inventor · disambiguated record
Koichi Hayashi
Also filed as: HAYASHI KOICHI
107 granted patents·13 pending applications·1,535 citations·filing 1981–2023
99Inventor score
Files withMURATA MANUFACTURING CO29KYOCERA DOCUMENT SOLUTIONS INC11TOKAI RYOKAKU TETSUDO KK9TOTO LTD9BROTHER IND LTD8
Top patents by PatentIndex Score
120 records- 0195US7735473B2Connection head structure of high pressure fuel injection tubeUSUI KOKUSAI SANGYO KK·Filed 2008·Granted Jun 15, 2010·24 cites·8 claims
- 0295US7614443B2Heat exchanger tubeUSUI KOKUSAI SANGYO KK·Filed 2006·Granted Nov 10, 2009·26 cites·17 claims
- 0395US6014677ADocument management device and method for managing documents by utilizing additive informationFUJI XEROX CO LTD·Filed 1996·Granted Jan 11, 2000·479 cites·18 claims
- 0494US11726727B2Server and computer program for serverBROTHER IND LTD·Filed 2022·Granted Aug 15, 2023·3 cites·8 claims
- 0593US8186724B2Connecting head structure for high-pressure fuel injection pipesKATO NOBUO·Filed 2007·Granted May 29, 2012·23 cites·19 claims
- 0690US11126110B2Image forming apparatus for controlling durability correction value in execution of toner installation modeKYOCERA DOCUMENT SOLUTIONS INC·Filed 2020·Granted Sep 21, 2021·2 cites·4 claims
- 0789US7667377B2Laminated piezoelectric element and process for producing the sameMURATA MANUFACTURING CO·Filed 2008·Granted Feb 23, 2010·9 cites·9 claims
- 0888US5381523ADocument processing device using partial layout templatesFUJI XEROX CO LTD·Filed 1993·Granted Jan 10, 1995·130 cites·11 claims
- 0986US7598660B2Monolithic piezoelectric elementMURATA MANUFACTURING CO·Filed 2007·Granted Oct 6, 2009·17 cites·11 claims
- 1086US7344654B2Piezoelectric ceramic composition and piezoelectric actuatorMURATA MANUFACTURING CO·Filed 2007·Granted Mar 18, 2008·9 cites·12 claims
- 1185US6440324B1Method for manufacturing piezoelectric ceramic composition, piezoelectric resonator, piezoelectric transformer and piezoelectric actuator, and piezoelectric laminated sintered bodyMURATA MANUFACTURING CO·Filed 2000·Granted Aug 27, 2002·29 cites·19 claims
- 1284US8596246B2Fuel rail for high-pressure direct-injection internal combustion engines and method for manufacturing thereofNISHIZAWA HIROYUKI·Filed 2009·Granted Dec 3, 2013·15 cites·9 claims
- 1384US4544436AApparatus for producing composite corrugating media for the manufacture of corrugated fiberboard and method of making sameKYOKUTO FATTY ACID CORP·Filed 1984·Granted Oct 1, 1985·36 cites·7 claims
- 1483US7509716B2Method for manufacturing piezoelectric actuatorMURATA MANUFACTURING CO·Filed 2006·Granted Mar 31, 2009·12 cites·7 claims
- 1583US4531287AAutomatically operating electric shaverPHILIPS CORP·Filed 1984·Granted Jul 30, 1985·56 cites·6 claims
- 1682US7969066B2Multilayer peiezoelectric actuator having a stress-absorbing external-electrode member with portions thereof not bonded to a base electrodeMURATA MANUFACTURING CO·Filed 2010·Granted Jun 28, 2011·7 cites·7 claims
- 1782US7808155B2Monolithic piezoelectric elementMURATA MANUFACTURING CO·Filed 2009·Granted Oct 5, 2010·6 cites·6 claims
- 1882US7605522B2Piezoelectric deviceMURATA MANUFACTURING CO·Filed 2007·Granted Oct 20, 2009·6 cites·10 claims
- 1982US6444304B1Anodic oxide layer and ceramic coating for aluminum alloy excellent in resistance to gas and plasma corrosionKOBE STEEL LTD·Filed 1999·Granted Sep 3, 2002·57 cites·9 claims
- 2082US6258291B1Piezoelectric ceramic composition and piezoelectric ceramic device using the sameMURATA MANUFACTURING CO·Filed 2000·Granted Jul 10, 2001·26 cites·18 claims
- 2182US5528484APower supplyHPM IND PTY LTD·Filed 1993·Granted Jun 18, 1996·47 cites·9 claims
- 2278US9002232B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Apr 7, 2015·2 cites·17 claims
- 2378US7745981B2Piezoelectric actuator and method for manufacturing piezoelectric actuatorMURATA MANUFACTURING CO·Filed 2009·Granted Jun 29, 2010·8 cites·8 claims
- 2478US7595006B2Piezoelectric ceramic composition and piezoelectric actuatorYAMAMOTO ATSUSHI·Filed 2007·Granted Sep 29, 2009·3 cites·20 claims
- 2578US6354901B1Discharge lamp, discharge lamp sealing method, discharge lamp sealing deviceTOTO LTD·Filed 1998·Granted Mar 12, 2002·34 cites·23 claims
- 2677US8953971B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2013·Granted Feb 10, 2015·2 cites·5 claims
- 2777US6901553B1Apparatus and method for providing intrinsic access space to user in hypertext spaceFUJI XEROX CO LTD·Filed 2000·Granted May 31, 2005·25 cites·11 claims
- 2876US6548162B1Sanitary ware and process for producing the sameTOTO LTD·Filed 2000·Granted Apr 15, 2003·16 cites·33 claims
- 2974US10234789B2Image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2018·Granted Mar 19, 2019·1 cites·4 claims
- 3074US6720426B2Process for producing 2-(4-pyridyl)ethanethiolMITSUBISHI CHEM CORP·Filed 2003·Granted Apr 13, 2004·6 cites·6 claims
- 3174US6248254B1Piezoelectric ceramic composition and piezoelectric ceramic device using the sameMURATA MANUFACTURING CO·Filed 2000·Granted Jun 19, 2001·12 cites·20 claims
- 3272US11015231B2Method of manufacturing fuel rail for gasoline direct injectionUSUI CO LTD·Filed 2019·Granted May 25, 2021·0 cites·1 claims
- 3371US6514622B1Sanitary earthen productsTOTO LTD·Filed 1999·Granted Feb 4, 2003·27 cites·49 claims
- 3471US5611693AImage karaoke deviceBROTHER IND LTD·Filed 1994·Granted Mar 18, 1997·24 cites·24 claims
- 3570US7777398B2Piezoelectric actuatorMURATA MANUFACTURING CO·Filed 2007·Granted Aug 17, 2010·6 cites·20 claims
- 3670US6904894B2Pulsation reducing system for fuel lineUSUI KOKUSAI SANGYO KK·Filed 2003·Granted Jun 14, 2005·13 cites·11 claims
- 3770US6880180B2Sanitary washing toilet seat deviceAISIN SEIKI·Filed 2003·Granted Apr 19, 2005·11 cites·11 claims
- 3869US7188609B2Fuel delivery pipeUSUI KOKUSAI SANGYO KK·Filed 2005·Granted Mar 13, 2007·5 cites·11 claims
- 3967US5790853AWorkspace management apparatusFUJI XEROX CO LTD·Filed 1995·Granted Aug 4, 1998·59 cites·18 claims
- 4064US6383411B1Piezoelectric ceramic composition and piezoelectric ceramic device using the sameMURATA MANUFACTURING CO·Filed 2000·Granted May 7, 2002·6 cites·20 claims
- 4163US11493861B2Developer container and image forming apparatus having the sameKYOCERA DOCUMENT SOLUTIONS INC·Filed 2021·Granted Nov 8, 2022·0 cites·5 claims
- 4263US6699606B2Sanitary ware and process for producing the sameTOTO LTD·Filed 2003·Granted Mar 2, 2004·5 cites·67 claims
- 4363US5653924AMethods of manufacturing gradient function materialTOTO LTD·Filed 1994·Granted Aug 5, 1997·12 cites·23 claims
- 4461US2018023157A1Fuel rail for gasoline direct injectionUSUI CO LTD·Filed 2015·Application pending·0 cites
- 4560US11951846B2Structure of disconnect plug for electric vehicleNISSAN MOTOR·Filed 2020·Granted Apr 9, 2024·0 cites·5 claims
- 4660US6372152B1Piezoelectric ceramic composition and ceramic piezoelectric device employing the compositionMURATA MANUFACTURING CO·Filed 2000·Granted Apr 16, 2002·4 cites·20 claims
- 4758US12112081B2Information processing apparatus and printing authority management systemBROTHER IND LTD·Filed 2023·Granted Oct 8, 2024·0 cites·19 claims
- 4857US10145347B2Fuel railUSUI KOKUSAI SANGYO KK·Filed 2015·Granted Dec 4, 2018·0 cites·2 claims
- 4957US7185636B2Fuel delivery pipeUSUI KOKUSAI SANGYO KK·Filed 2003·Granted Mar 6, 2007·6 cites·11 claims
- 5057US6946581B2Bisphenol compound composition having excellent thermal stabilityMITSUBISHI CHEM CORP·Filed 2003·Granted Sep 20, 2005·1 cites·29 claims
Showing the top 50 of 120 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →