KW

Kazuhiro Wakamatsu

HI Hitachi: 19 patents #1,906 of 28,497Top 7%
Ricoh Company: 16 patents #1,360 of 9,818Top 15%
RS Ricoh Printing Systems: 4 patents #32 of 200Top 20%
HS Hitachi Printing Solutions: 1 patents #50 of 99Top 55%
HC Hitachi Setsubi Engineering Co.: 1 patents #6 of 24Top 25%
Overall (All Time): #79,623 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
6501925 Photoconductor unit and image forming system Masashi Yamamoto, Toru Miyasaka, Masaru Nakano, Akira Shimada, Kenji Mori +1 more 2002-12-31
6381428 Photoconductor unit and image forming system Masashi Yamamoto, Toru Miyasaka, Masaru Nakano, Akira Shimada, Kenji Mori +1 more 2002-04-30
D452703 Printer Shingo Hirose, Minoru Ikeda 2002-01-01
6327447 Electrophotographic apparatus having heat exhaustion device Masaru Nakano, Kenji Mori, Katsumasa Mikami 2001-12-04
6308025 Electrophotography apparatus Tadashi Okano, Tetsuji Takegoshi, Kazuo Kikuchi, Toru Hanashima 2001-10-23
6253039 Color image forming apparatus Masahiro Nakano, Masahiko Saito, Akira Sasaki 2001-06-26
D437348 Printer Shingo Hirose, Minoru Ikeda, Tetsuji Takegoshi, Taisuke Kashima 2001-02-06
6181889 Image forming apparatus with reduced latent image vibration caused by photosensitive belt joint Tomio Hayano, Tetsuro Akasaki, Isamu Terashima, Shoji Ukei 2001-01-30
6081683 Color electrophotographic apparatus with obliquely arranged photosensitive belt Toru Miyasaka, Toshiya Satoh, Hiroyuki Tadokoro, Masahiko Saito 2000-06-27
5621504 Toner transferring device Akira Sasaki, Nobuaki Fukasawa 1997-04-15
5373354 Color electrophotographic device and method Hiroyuki Tadokoro, Isamu Terashima 1994-12-13
5291254 Electrophotographic recording apparatus Akira Shimada, Isamu Terashima, Tomoji Kitagishi, Masahiko Saito 1994-03-01
5113226 Image transfer apparatus Hiroyuki Tadokoro, Syoji Sagae, Akira Shimada 1992-05-12
4922272 High precision image recording apparatus Seiji Yonekura, Mitsuo Suzuki, Hiroyuki Tadokoro, Atsuo Suzuki 1990-05-01
4552449 Compound image recording apparatus Yoshio Kawamata 1985-11-12