KW

Kazushi Watanabe

Canon: 114 patents #68 of 19,416Top 1%
DI Daicel Chemical Industries: 10 patents #53 of 893Top 6%
MC Murata Manufacturing Co.: 4 patents #1,804 of 5,295Top 35%
YC Yutaka Electric Mfg. Co.: 3 patents #2 of 19Top 15%
NE Nemic-Lambda: 3 patents #1 of 14Top 8%
TD Tdk-Lambda: 2 patents #14 of 36Top 40%
TC Toko Co.: 2 patents #55 of 196Top 30%
UE University Of Electro-Communications: 1 patents #47 of 199Top 25%
NC Nhk Spring Co.: 1 patents #555 of 1,116Top 50%
Yamaha: 1 patents #1,232 of 2,001Top 65%
PC Polyplastics Co.: 1 patents #154 of 292Top 55%
CC Campus Creat Co.: 1 patents #3 of 20Top 15%
Overall (All Time): #7,516 of 4,157,543Top 1%
137
Patents All Time

Issued Patents All Time

Showing 26–50 of 137 patents

Patent #TitleCo-InventorsDate
6832056 Memory member, unit, process cartridge and electrophotographic image forming apparatus Yoshihiro Ito, Toshiyuki Karakama 2004-12-14
6804483 Electrophotographic image forming apparatus and process cartridges Akiyoshi Yokoi, Toshiyuki Karakama, Toru Oguma 2004-10-12
6782213 Memory member, unit, process cartridge and electrophotographic image forming apparatus Yoshihiro Ito, Toshiyuki Karakama 2004-08-24
6782222 Image forming apparatus and process cartridge mountable therein in which a gap exists between a main assembly antenna of the apparatus and a memory antenna of the process cartridge mounted thereon Yoshihiro Ito, Toshiyuki Karakama 2004-08-24
6738589 Process cartridge including convex and concave portions and electrophotographic image forming apparatus to which such a process cartridge is detachably mountable Toshiyuki Karakama 2004-05-18
6704525 Developing device, process cartridge and electrophotographic image forming apparatus Toru Oguma, Toshiyuki Karakama, Akiyoshi Yokoi 2004-03-09
6701107 Memory member, unit, process cartridge and electrophotographic image forming apparatus Toshiyuki Karakama, Yoshihiro Ito 2004-03-02
6701106 Cartridge having developer containing portion with inner pressure regulating function Akiyoshi Yokoi 2004-03-02
6697578 Memory member, unit, process cartridge and electrophotographic image forming apparatus Yoshihiro Ito, Toshiyuki Karakama 2004-02-24
6684040 Developing device, process cartridge, electrophotographic image forming apparatus, and developer container and method of assembling the developer container Akiyoshi Yokoi, Toru Oguma 2004-01-27
6658224 Process cartridge and electrophotographic image forming apparatus Akiyoshi Yokoi, Toshiyuki Karakama, Toru Oguma 2003-12-02
6654567 Process cartridge detachable from electrophotographic image forming apparatus having wireless communication Toshiyuki Karakama, Yoshihiro Ito 2003-11-25
6642728 Holder of electroconductive contactor, and method for producing the same Masami Kudo, Toshio Kazama, Yoshio Yamada 2003-11-04
6625413 Developing device, process cartridge and electrophotographic image forming apparatus Toru Oguma, Toshiyuki Karakama, Akiyoshi Yokoi 2003-09-23
6606469 Developing apparatus mounted on image forming apparatus Ken Kikuchi, Toru Oguma, Akiyoshi Yokoi 2003-08-12
6594454 Electric contact member and developing device, process cartridge, and electrophotographic image-forming apparatus using the electric contact member Toru Oguma, Toshiyuki Karakama 2003-07-15
6571070 Process cartridge and image forming apparatus Toru Oguma, Akiyoshi Yokoi 2003-05-27
6501926 Process cartridge and electrophotographic image forming apparatus Yoshihiro Ito, Toshiharu Kawai 2002-12-31
6501927 Process cartridge and photosensitive drum driving mount Yoshihiro Ito, Toshiharu Kawai 2002-12-31
6408143 Electrophotographic image forming apparatus Kazushige Sakurai, Toshiyuki Karakama, Hideki Matsumoto 2002-06-18
6400914 Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Shinya Noda, Shinichi Sasaki, Akihiro Toma, Isao Ikemoto, Akira Higeta 2002-06-04
6397018 Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus Hideki Matsumoto, Kazushige Sakurai, Isao Ikemoto, Toshiyuki Karakama 2002-05-28
6397017 Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus Hiroaki Sakai, Toshiyuki Karakama, Masaru Shimura, Hideki Matsumoto, Seiji Saito 2002-05-28
6377759 Process cartridge, electrophotographic image forming apparatus and developer amount detecting member Daisuke Abe, Toru Oguma, Takao Nakagawa 2002-04-23
6349188 Process cartridge, electrophotographic image forming apparatus, driving force transmission part and electrophotographic photosensitive drum Toshiharu Kawai, Yoshihiro Ito 2002-02-19