KK

Kenji Koyama

Ricoh Company: 10 patents #2,244 of 9,818Top 25%
NC Nippon Conlux Co.: 7 patents #26 of 105Top 25%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
Fujitsu Limited: 5 patents #6,029 of 24,456Top 25%
TC Toyo Soda Manufacturing Co.: 4 patents #37 of 272Top 15%
DI Daikin Industries: 2 patents #1,262 of 2,957Top 45%
TO Tosoh: 2 patents #354 of 1,042Top 35%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
RC Ricoh Optical Industries Co.: 1 patents #9 of 28Top 35%
TC Toho Titanium Co.: 1 patents #86 of 153Top 60%
TO Tosch: 1 patents #1 of 17Top 6%
TS Toshiba Electronic Devices & Storage: 1 patents #470 of 900Top 55%
AC Akita Electronics Systems Co.: 1 patents #3 of 36Top 9%
Canon: 1 patents #14,899 of 19,416Top 80%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
HS Hitachi Tohbu Semiconductor: 1 patents #126 of 223Top 60%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
MK Murata Kikai: 1 patents #251 of 454Top 60%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
Overall (All Time): #57,743 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
6048152 Binding apparatus 2000-04-11
5994435 Flame retardant and flame retardant resin composition formulated with the same Kimitaka Kuma, Nobuhiro Fujita, Takumi Kagawa, Fumio Okisaki, Keiji Itabashi 1999-11-30
5697483 Coin processor Takeshi Ishida, Iwao Kanasashi, Jun Yamada, Genzo Yoshizawa 1997-12-16
5679070 Coin payout device Takeshi Ishida, Jun Yamada, Genzo Yoshizawa 1997-10-21
5579886 Coin processor Takeshi Ishida, Iwao Kanasashi, Jun Yamada, Genzo Yoshizawa 1996-12-03
5468181 Coin processing apparatus Takeshi Ishida, Hiroshi Kasama, Kenji Nishiumi, Kenji Nakajima 1995-11-21
5346047 Coin processing apparatus Takeshi Ishida, Hiroshi Kasama, Kenji Nishiumi, Kenji Nakajima 1994-09-13
5315502 Plant operation support apparatus and method using expert systems Shoichi Uchihara 1994-05-24
5307110 Pulse-controlled camera, method for setting control reference position thereof, and method for adjusting mechanical errors in production thereof Kousaku Sawabe, Daisuke Hata 1994-04-26
5148212 Flash control based on calculated required flash energy Yoshio Serikawa, Susumu Iguchi, Akira Ueno, Hiroshi Takeda, Shigeru Mitsu +2 more 1992-09-15
5041311 Chemical vapor deposition method using a plasma self-cleaning Atsuhiro Tsukune 1991-08-20
4866468 Control device for driving zoom lens of a camera Keiji Himuro, Takashi Hongoh 1989-09-12
4781945 Process for the formation of phosphosilicate glass coating Masahide Nishimura, Kanetake Takasaki, Atsuhiro Tsukune 1988-11-01
4720720 Motor-driven film winder for cameras Kunihiko Araki, Tomoya Kitajima, Yoshio Serikawa, Mikio Kobayashi, Hiroshi Terui 1988-01-19
4690754 Filter device for a minute volume of liquid Shotaro Ohno 1987-09-01
4653885 Motor-driven film winder for cameras Kunihiko Araki, Tomoya Kitajima, Yoshio Serikawa, Hiroshi Terui, Mikio Kobayashi 1987-03-31
4581622 UV erasable EPROM with UV transparent silicon oxynitride coating Kanetake Takasaki, Mikio Takagi 1986-04-08
4539068 Vapor phase growth method Mikio Takagi, Kanetake Takasaki 1985-09-03
4532022 Process of producing a semiconductor device Kanetake Takasaki, Mikio Takagi 1985-07-30
4522725 Process for separating plasma albumin Syotaro Ohno, Mitsutoshi Fukuda 1985-06-11
4474587 Process for the treatment of waste gases from a chlorination furnace Yoshimasa Matsumoto, Tadachika Mizuno, Hidehiro Sato 1984-10-02
4347138 Method of separating serum albumin and gamma-globulin from each other Shotaro Ohno, Mitsutoshi Fukuda 1982-08-31
4333870 Process for separating .gamma.-globulin aggregate by polysulfone membrane Syotaro Ohno, Mitsutoshi Fukuda 1982-06-08