KW

Kazuhito Watanabe

Ricoh Company: 21 patents #1,013 of 9,818Top 15%
Canon: 7 patents #7,830 of 19,416Top 45%
AN Anelva: 6 patents #14 of 280Top 5%
FU Futaba: 3 patents #59 of 292Top 25%
JD Japan Display: 2 patents #741 of 1,204Top 65%
NO Nof: 2 patents #143 of 561Top 30%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
MC M. Soft Co.: 1 patents #4 of 14Top 30%
SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
Overall (All Time): #70,138 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
7005223 Toner composition and method for manufacturing the toner composition Hiroshi Yamashita, Chiaki Tanaka, Tsunemi Sugiyama, Shigeru Emoto, Masami Tomita 2006-02-28
6835519 Dry toner and image forming method using same Tsunemi Sugiyama, Shigeru Emoto, Hiroshi Yamashita, Masami Tomita, Chiaki Tanaka 2004-12-28
6756175 Method for fixing toner Shigeru Emoto, Chiaki Tanaka, Naohiro Watanabe, Hiroshi Yamada, Tsunemi Sugiyama +2 more 2004-06-29
6740461 Carrier and two-component developer for electrophotography Masahide Yamashita, Masanori Suzuki, Yohichiroh Watanabe, Keiko Shiraishi, Kohki Katoh 2004-05-25
6660443 Dry toner and image forming method using same Tsunemi Sugiyama, Shigeru Emoto, Hiroshi Yamashita, Masami Tomita, Chiaki Tanaka 2003-12-09
6567546 Data medium handling apparatus medium handling method Shinichi Eguchi, Yutaka Katsumata, Koichi Chiba, Hideki Matsuno, Yoshihiro Nagano +12 more 2003-05-20
6566026 Toner for developing electrostatic latent image, toner container containing the toner, and image forming method and apparatus using the toner Yohichiroh Watanabe, Masanori Suzuki, Masahide Yamashita, Keiko Shiraishi, Kohki Katoh +2 more 2003-05-20
6432261 Plasma etching system Hironari Shimizu, Toshiaki Koguchi, Nobuyuki Takahashi 2002-08-13
6403275 Electrophotographic toner, and image forming method and apparatus using the toner Shinichi Kuramoto, Mitsuo Aoki, Hiroshi Yamashita, Fumihiro Sasaki, Tomio Kondou +2 more 2002-06-11
6386511 Gate valve apparatus Yoshihiro Katsumata, Nobuyuki Takahashi 2002-05-14
6363229 Full-color toner image fixing method and apparatus Keiko Shiraishi, Masanori Suzuki, Yohichiroh Watanabe, Masahide Yamashita, Kohki Katoh +3 more 2002-03-26
6360011 Data medium handling apparatus and data medium handling method Yutaka Katsumata, Kazunori Yamamoto, Yoshiyuki Kijima 2002-03-19
6129046 Substrate processing apparatus Shigeru Mizuno, Masahito Ishihara, Nobuyuki Takahashi 2000-10-10
5766363 Heater for CVD apparatus Shigeru Mizuno, Takanori Yoshimura, Nobuyuki Takahashi 1998-06-16
5747210 Electrostatic image developing toner and method for producing the toner Shigeru Emoto, Kumi Hasegawa, Youichi Maekawa, Kouki Katoh 1998-05-05
5676758 CVD apparatus Shinya Hasegawa, Shigeru Mizuno, Nobuyuki Takahashi, Manabu Tagami, Takanori Yoshimura +1 more 1997-10-14
5597673 Toner for developing electrostatic latent image Toshiki Nanya 1997-01-28
5314777 Negatively chargeable toner for developing latent electrostatic images Toshiki Nanya, Yasuaki Iwamoto 1994-05-24