Inventor · disambiguated record
Kenji Koyama
Also filed as: KOYAMA KENJI
49 granted patents·9 pending applications·903 citations·filing 1976–2022
98Inventor score
Top patents by PatentIndex Score
58 records- 0197US4539068AVapor phase growth methodFUJITSU LTD·Filed 1982·Granted Sep 3, 1985·147 cites·3 claims
- 0292US11842047B2Magnetic disk deviceTOSHIBA KK·Filed 2022·Granted Dec 12, 2023·2 cites·10 claims
- 0389US8618638B2Semiconductor optical modulator and method for manufacturing the sameYONEDA YOSHIHIRO·Filed 2011·Granted Dec 31, 2013·6 cites·17 claims
- 0487US8124543B2Method for manufacturing semiconductor laser diodeYAGI HIDEKI·Filed 2010·Granted Feb 28, 2012·10 cites·14 claims
- 0586US6617816B2DC motor rotation detecting apparatus and DC motor rotation control apparatusRICOH KK·Filed 2000·Granted Sep 9, 2003·34 cites·24 claims
- 0685US6628893B2DC motor rotation control apparatusRICOH KK·Filed 2001·Granted Sep 30, 2003·36 cites·34 claims
- 0784US4581622AUV erasable EPROM with UV transparent silicon oxynitride coatingFUJITSU LTD·Filed 1984·Granted Apr 8, 1986·50 cites·8 claims
- 0883US5679070ACoin payout deviceNIPPON CONLUX CO LTD·Filed 1995·Granted Oct 21, 1997·90 cites·13 claims
- 0982US4653885AMotor-driven film winder for camerasARAKI KUNIHIKO·Filed 1985·Granted Mar 31, 1987·23 cites·10 claims
- 1080US4532022AProcess of producing a semiconductor deviceFUJITSU LTD·Filed 1983·Granted Jul 30, 1985·41 cites·10 claims
- 1179US5315502APlant operation support apparatus and method using expert systemsMITSUBISHI ELECTRIC CORP·Filed 1990·Granted May 24, 1994·63 cites·3 claims
- 1278US4720720AMotor-driven film winder for camerasRICOH KK·Filed 1985·Granted Jan 19, 1988·16 cites·8 claims
- 1377US7405421B2Optical integrated deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Jul 29, 2008·8 cites·12 claims
- 1476US8530750B2Multilayer printed circuit boardKOYAMA KENJI·Filed 2010·Granted Sep 10, 2013·5 cites·6 claims
- 1576US6579623B2Composite material member for semiconductor device and insulated and non-insulated semiconductor devices using composite material memberHITACHI LTD·Filed 2002·Granted Jun 17, 2003·20 cites·16 claims
- 1675US7499640B2Image-recording apparatusRICOH KK·Filed 2005·Granted Mar 3, 2009·4 cites·16 claims
- 1774US6124394AFire-retardant tablet, and fire-retarding method, fire-retardant polymer composition and molded article employing the sameTOSOH CORP·Filed 1997·Granted Sep 26, 2000·37 cites·25 claims
- 1872US4866468AControl device for driving zoom lens of a cameraRICOH KK·Filed 1988·Granted Sep 12, 1989·14 cites·7 claims
- 1971US8240746B2Vehicle front body structureYAMAGISHI HIDEAKI·Filed 2010·Granted Aug 14, 2012·6 cites·5 claims
- 2069US5041311AChemical vapor deposition method using a plasma self-cleaningFUJITSU LTD·Filed 1990·Granted Aug 20, 1991·29 cites·4 claims
- 2168US8563342B2Method of making semiconductor optical integrated device by alternately arranging spacers with integrated device arraysYONEDA YOSHIHIRO·Filed 2012·Granted Oct 22, 2013·2 cites·7 claims
- 2267US7324781B2Automatic document transportation deviceMURATA MACHINERY LTD·Filed 2004·Granted Jan 29, 2008·8 cites·20 claims
- 2367US6570350B2DC motor rotation detecting apparatus and DC motor rotation control apparatusRICOH KK·Filed 2001·Granted May 27, 2003·15 cites·4 claims
- 2467US6048152ABinding apparatusAICHI BUSINESS FORM KK·Filed 1998·Granted Apr 11, 2000·19 cites·6 claims
- 2565US4096099APorous synthetic resin filmTOYO SODA MFG CO LTD·Filed 1976·Granted Jun 20, 1978·19 cites·6 claims
- 2664US12338921B2Compressor and compressor unitDAIKIN IND LTD·Filed 2022·Granted Jun 24, 2025·0 cites·7 claims
- 2763US2022317869A1Storage medium, screen generation assisting apparatus, and generation assisting methodFUJITSU LTD·Filed 2022·Application pending·0 cites
- 2861US5994435AFlame retardant and flame retardant resin composition formulated with the sameTOSOH CORP·Filed 1997·Granted Nov 30, 1999·15 cites·24 claims
- 2960US5148212AFlash control based on calculated required flash energyRICOH KK·Filed 1991·Granted Sep 15, 1992·24 cites·17 claims
- 3059US7091587B2Semiconductor deviceAKITA ELECTRONICS SYSTEMS CO L·Filed 2004·Granted Aug 15, 2006·9 cites·11 claims
- 3157US12117218B2Air conditionerDAIKIN IND LTD·Filed 2020·Granted Oct 15, 2024·0 cites·5 claims
- 3257US6536577B2Coin handling method and deviceNIPPON CONLUX CO LTD·Filed 2001·Granted Mar 25, 2003·3 cites·33 claims
- 3357US6207735B1Flame retardant and flame retardant resin composition containing itTOSCH CORP·Filed 1998·Granted Mar 27, 2001·20 cites·22 claims
- 3455US6918826B2Coin treating deviceNIPPON CONLUX CO LTD·Filed 2001·Granted Jul 19, 2005·2 cites·8 claims
- 3554US6441484B2Semiconductor device having switching elements around a central control circuitHITACHI LTD·Filed 2001·Granted Aug 27, 2002·8 cites·18 claims
- 3652US7307368B2DC motorRICOH KK·Filed 2001·Granted Dec 11, 2007·6 cites·10 claims
- 3750US7835638B2Image recording apparatus, image recording method, and computer-readable recording mediumRICOH CO LTD·Filed 2007·Granted Nov 16, 2010·0 cites·9 claims
- 3849US4690754AFilter device for a minute volume of liquidTOYO SODA MFG CO LTD·Filed 1986·Granted Sep 1, 1987·13 cites·6 claims
- 3948US5697483ACoin processorNIPPON CONLUX CO LTD·Filed 1996·Granted Dec 16, 1997·25 cites·8 claims
- 4048US4347138AMethod of separating serum albumin and gamma-globulin from each otherTOYO SODA MFG CO LTD·Filed 1980·Granted Aug 31, 1982·10 cites·3 claims
- 4148US2003116401A1Coin handling method and deviceNIPPON CONLUX CO LTD·Filed 2003·Application pending·0 cites
- 4247US8964809B2Semiconductor optical integrated deviceYONEDA YOSHIHIRO·Filed 2012·Granted Feb 24, 2015·0 cites·12 claims
- 4345US2005120144A1Disk control unit, disk drive, disk control method, and disk control programFUJITSU LTD·Filed 2004·Application pending·0 cites
- 4444US5579886ACoin processorNIPPON CONLUX CO LTD·Filed 1994·Granted Dec 3, 1996·14 cites·6 claims
- 4544US5468181ACoin processing apparatusNIPPON CONLUX CO LTD·Filed 1994·Granted Nov 21, 1995·9 cites·6 claims
- 4644US4781945AProcess for the formation of phosphosilicate glass coatingFUJITSU LTD·Filed 1987·Granted Nov 1, 1988·14 cites·12 claims
- 4741US5346047ACoin processing apparatusNIPPON CONLUX CO LTD·Filed 1993·Granted Sep 13, 1994·7 cites·35 claims
- 4840US8637329B2Method for producing semiconductor optical integrated deviceYONEDA YOSHIHIRO·Filed 2012·Granted Jan 28, 2014·0 cites·11 claims
- 4939US2005220392A1Optical integrated deviceHASHIMOTO JUN-ICHI·Filed 2005·Application pending·0 cites
- 5039US2003201530A1Composite material member for semiconductor device and insulated and non-insulated semiconductor devices using composite material memberHITACHI LTD·Filed 2003·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →