Inventor · disambiguated record
Kenji Hayashi
Also filed as: HAYASHI KENJI
251 granted patents·66 pending applications·2,637 citations·filing 1974–2025
99Inventor score
Files withSEIKO EPSON CORP45ROHM CO LTD38KONICA MINOLTA BUSINESS TECH27HAYASHI KENJI25HITACHI METALS LTD13
Top patents by PatentIndex Score
317 records- 0197US7452738B2Method of manufacturing organic electroluminescent device and organic electroluminescent deviceSEIKO EPSON CORP·Filed 2005·Granted Nov 18, 2008·31 cites·14 claims
- 0296US10950582B2Semiconductor power moduleROHM CO LTD·Filed 2020·Granted Mar 16, 2021·4 cites·25 claims
- 0396US6791660B1Method for manufacturing electrooptical device and apparatus for manufacturing the same, electrooptical device and electronic appliancesSEIKO EPSON CORP·Filed 2003·Granted Sep 14, 2004·147 cites·9 claims
- 0495US6395442B1Toner and production method of the sameKONISHIROKU PHOTO IND·Filed 2000·Granted May 28, 2002·55 cites·20 claims
- 0594US11901340B2Semiconductor power moduleROHM CO LTD·Filed 2023·Granted Feb 13, 2024·1 cites·16 claims
- 0694US7538354B2Light-emitting device and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted May 26, 2009·21 cites·7 claims
- 0794US7076216B2High-frequency device, high-frequency module and communications device comprising themHITACHI METALS LTD·Filed 2003·Granted Jul 11, 2006·35 cites·33 claims
- 0894US5415964APigment-containing polymer particles, method of production thereofKONISHIROKU PHOTO IND·Filed 1994·Granted May 16, 1995·55 cites·27 claims
- 0994US2025385165A1Semiconductor moduleROHM CO LTD·Filed 2025·Application pending·0 cites
- 1093US11955414B2Semiconductor moduleROHM CO LTD·Filed 2023·Granted Apr 9, 2024·1 cites·5 claims
- 1193US11600602B2Semiconductor power moduleROHM CO LTD·Filed 2021·Granted Mar 7, 2023·2 cites·17 claims
- 1293US10600764B2Semiconductor power moduleROHM CO LTD·Filed 2017·Granted Mar 24, 2020·6 cites·20 claims
- 1393US8476828B2Electro-optical device, electronic device, and illumination apparatus including a panel having an electro-optical layerHAYASHI KENJI·Filed 2010·Granted Jul 2, 2013·33 cites·32 claims
- 1493USRE43442ELight-emitting device and electronic apparatusHAYASHI KENJI·Filed 2011·Granted Jun 5, 2012·10 cites·9 claims
- 1593US6329490B1Polyhedral organosilicon compound and method for producing the sameMITSUBISHI MATERIALS CORP·Filed 2000·Granted Dec 11, 2001·64 cites·25 claims
- 1693US6173312B1System for reliably connecting a client computer to a server computerHITACHI LTD·Filed 1997·Granted Jan 9, 2001·294 cites·22 claims
- 1793US5907540ARadio data communication apparatus having a relay function and radio data communication method and system using the sameHITACHI LTD·Filed 1995·Granted May 25, 1999·165 cites·24 claims
- 1892US9259952B2Ink-jet printing apparatus and method of printing seamless cans by using the same printing apparatusYAMADA KOJI·Filed 2012·Granted Feb 16, 2016·7 cites·10 claims
- 1992US8164258B2Emissive device having a layer that relieves external forces on adjacent layer, process for producing the emissive device and an electronic apparatus including the emissive deviceHAYASHI KENJI·Filed 2006·Granted Apr 24, 2012·18 cites·24 claims
- 2092US7956355B2Method of manufacturing organic electroluminescent device and organic electroluminescent deviceSEIKO EPSON CORP·Filed 2010·Granted Jun 7, 2011·8 cites·8 claims
- 2192US7902751B2Organic electroluminescent device, method for producing the same, and electronic apparatusSEIKO EPSON CORP·Filed 2008·Granted Mar 8, 2011·15 cites·15 claims
- 2292US7741769B2Light-emitting device for sealing light-emitting elements and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Jun 22, 2010·14 cites·13 claims
- 2392US7317281B2Method for manufacturing electrooptical device and apparatus for manufacturing the same, electrooptical device and electronic appliancesSEIKO EPSON CORP·Filed 2004·Granted Jan 8, 2008·67 cites·17 claims
- 2491USD973029SSemiconductor deviceROHM CO LTD·Filed 2021·Granted Dec 20, 2022·16 cites·1 claims
- 2591US11118240B2Abrasion-resistant steel plate and method of producing abrasion-resistant steel plateJFE STEEL CORP·Filed 2016·Granted Sep 14, 2021·2 cites·13 claims
- 2691US8643939B2Electrophoretic display sheet and manufacturing method thereforHAYASHI KENJI·Filed 2012·Granted Feb 4, 2014·7 cites·12 claims
- 2791US8324805B2Organic electroluminescent device, method for producing the same, and electronic apparatusHAYASHI KENJI·Filed 2011·Granted Dec 4, 2012·8 cites·20 claims
- 2891US7781967B2Organic electroluminescence device having an improved barrier structure, and manufacturing method therefore and electronic apparatusSEIKO EPSON CORP·Filed 2007·Granted Aug 24, 2010·15 cites·13 claims
- 2990US8899718B2Printed seamless can and method of producing the sameYAMADA KOJI·Filed 2011·Granted Dec 2, 2014·10 cites·14 claims
- 3090US6472117B2Toner for developing electrostatic image and image forming methodKONISHIROKU PHOTO IND·Filed 2001·Granted Oct 29, 2002·36 cites·23 claims
- 3189US9450204B2Electro-optical device and electronic apparatusSEIKO EPSON CORP·Filed 2015·Granted Sep 20, 2016·3 cites·14 claims
- 3289US4153021AAir-fuel mixture ratio correcting system for carburetorNIPPON SOKEN·Filed 1977·Granted May 8, 1979·34 cites·9 claims
- 3388US8586656B2Ink composition for inkjet printingSHIOTANI TOSHIHIKO·Filed 2010·Granted Nov 19, 2013·11 cites·4 claims
- 3488US7187006B2Electro-optical device, method of manufacturing the same, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Mar 6, 2007·28 cites·4 claims
- 3588US6772689B2Printing quality inspection apparatusKOMORI PRINTING MACH·Filed 2001·Granted Aug 10, 2004·16 cites·12 claims
- 3688US5696630AFocal plates and method of manufacturing the sameOLYMPUS OPTICAL CO·Filed 1991·Granted Dec 9, 1997·26 cites·5 claims
- 3788US2025357433A1Semiconductor deviceROHM CO LTD·Filed 2025·Application pending·0 cites
- 3887US7667284B2Method of manufacturing organic electroluminescent device and organic electroluminescent deviceSEIKO EPSON CORP·Filed 2008·Granted Feb 23, 2010·7 cites·4 claims
- 3987US4036186AAir-fuel mixture ratio correcting system for carburetorNIPPON SOKEN·Filed 1974·Granted Jul 19, 1977·35 cites·14 claims
- 4087US2024371735A1Semiconductor moduleROHM CO LTD·Filed 2024·Application pending·0 cites
- 4186US12283573B2Semiconductor power moduleROHM CO LTD·Filed 2023·Granted Apr 22, 2025·0 cites·14 claims
- 4286US12191237B2Semiconductor moduleROHM CO LTD·Filed 2024·Granted Jan 7, 2025·0 cites·11 claims
- 4386US11233037B2Semiconductor deviceROHM CO LTD·Filed 2018·Granted Jan 25, 2022·4 cites·17 claims
- 4486US8304157B2Toner and manufacturing method thereofKOUYAMA MIKIO·Filed 2010·Granted Nov 6, 2012·4 cites·9 claims
- 4586US8253328B2Organic electroluminescence device, process of producing organic electroluminescence device, and electronic apparatusHAYASHI KENJI·Filed 2009·Granted Aug 28, 2012·9 cites·12 claims
- 4686US7915823B2Organic electroluminescent device with surface-modifying layer, method for manufacturing the same, and electronic apparatus including the sameSEIKO EPSON CORP·Filed 2008·Granted Mar 29, 2011·9 cites·10 claims
- 4785US12334466B2Semiconductor moduleROHM CO LTD·Filed 2024·Granted Jun 17, 2025·0 cites·16 claims
- 4885US12068230B2Semiconductor moduleROHM CO LTD·Filed 2024·Granted Aug 20, 2024·0 cites·13 claims
- 4985US11022870B2Fluorescent light source deviceUSHIO ELECTRIC INC·Filed 2018·Granted Jun 1, 2021·2 cites·7 claims
- 5085US9945015B2High-tensile steel plate giving welding heat-affected zone with excellent low-temperature toughness, and process for producing sameJFE STEEL CORP·Filed 2012·Granted Apr 17, 2018·3 cites·8 claims
Showing the top 50 of 317 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →