Inventor
KOYAMA KENJI
JP49 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
9 patentsUS6628893B2Sep 30, 2003
DC motor rotation control apparatus
RICOH KK36 citations92
US6617816B2Sep 9, 2003
DC motor rotation detecting apparatus and DC motor rotation control apparatus
RICOH KK34 citations92
US5148212ASep 15, 1992
Flash control based on calculated required flash energy
RICOH KK24 citations89
US6570350B2May 27, 2003
DC motor rotation detecting apparatus and DC motor rotation control apparatus
RICOH KK15 citations84
US4720720AJan 19, 1988
Motor-driven film winder for cameras
RICOH KK16 citations73
US4866468ASep 12, 1989
Control device for driving zoom lens of a camera
RICOH KK14 citations72
US7499640B2Mar 3, 2009
Image-recording apparatus
RICOH KK4 citations63
US7307368B2Dec 11, 2007
DC motor
RICOH KK6 citations63
US5307110AApr 26, 1994
Pulse-controlled camera, method for setting control reference position thereof, and method for adjusting mechanical errors in production thereof
RICOH KK2 citations61
NIPPON CONLUX CO LTD
7 patentsUS5679070AOct 21, 1997
Coin payout device
NIPPON CONLUX CO LTD90 citations96
US5697483ADec 16, 1997
Coin processor
NIPPON CONLUX CO LTD25 citations91
US5468181ANov 21, 1995
Coin processing apparatus
NIPPON CONLUX CO LTD9 citations73
US5346047ASep 13, 1994
Coin processing apparatus
NIPPON CONLUX CO LTD7 citations73
US5579886ADec 3, 1996
Coin processor
NIPPON CONLUX CO LTD14 citations72
US6918826B2Jul 19, 2005
Coin treating device
NIPPON CONLUX CO LTD2 citations62
US6536577B2Mar 25, 2003
Coin handling method and device
NIPPON CONLUX CO LTD3 citations62
FUJITSU LTD
5 patentsUS4539068ASep 3, 1985
Vapor phase growth method
FUJITSU LTD147 citations98
US4581622AApr 8, 1986
UV erasable EPROM with UV transparent silicon oxynitride coating
FUJITSU LTD50 citations96
US5041311AAug 20, 1991
Chemical vapor deposition method using a plasma self-cleaning
FUJITSU LTD29 citations92
US4532022AJul 30, 1985
Process of producing a semiconductor device
FUJITSU LTD41 citations92
US4781945ANov 1, 1988
Process for the formation of phosphosilicate glass coating
FUJITSU LTD14 citations70
TOYO SODA MFG CO LTD
5 patentsUS4096099AJun 20, 1978
Porous synthetic resin film
TOYO SODA MFG CO LTD19 citations80
US4690754ASep 1, 1987
Filter device for a minute volume of liquid
TOYO SODA MFG CO LTD13 citations73
US4347138AAug 31, 1982
Method of separating serum albumin and gamma-globulin from each other
TOYO SODA MFG CO LTD10 citations73
US4522725AJun 11, 1985
Process for separating plasma albumin
TOYO SODA MFG CO LTD5 citations61
US4333870AJun 8, 1982
Process for separating γ-globulin aggregate by polysulfone membrane
TOYO SODA MFG CO LTD4 citations61
YONEDA YOSHIHIRO
4 patentsUS8618638B2Dec 31, 2013
Semiconductor optical modulator and method for manufacturing the same
YONEDA YOSHIHIRO6 citations73
US8563342B2Oct 22, 2013
Method of making semiconductor optical integrated device by alternately arranging spacers with integrated device arrays
YONEDA YOSHIHIRO2 citations62
US8964809B2Feb 24, 2015
Semiconductor optical integrated device
YONEDA YOSHIHIRO0 citations41
US8637329B2Jan 28, 2014
Method for producing semiconductor optical integrated device
YONEDA YOSHIHIRO0 citations41
HITACHI LTD
2 patentsUS6579623B2Jun 17, 2003
Composite material member for semiconductor device and insulated and non-insulated semiconductor devices using composite material member
HITACHI LTD20 citations92
US6441484B2Aug 27, 2002
Semiconductor device having switching elements around a central control circuit
HITACHI LTD8 citations69