YI

Yasuhiro Ichikawa

KC Koito Manufacturing Co.: 18 patents #60 of 1,047Top 6%
Canon: 15 patents #4,433 of 19,416Top 25%
NK Nippon Kayaku: 2 patents #345 of 1,103Top 35%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
Overall (All Time): #96,244 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
7022449 Black toner with defined loss tangent Nobuyoshi Sugahara, Takaaki Kohtaki, Tetsuya Ida, Kazuhiko Hayami, Nozomu Komatsu 2006-04-04
6664016 Magenta toner Makoto Kanbayashi, Takaaki Kotaki, Katsumi Kondo, Takaaki Kaya, Wakashi Iida +1 more 2003-12-16
6187490 Resin-coated carrier, two-component developer and image forming method Masaaki Taya, Takaaki Kohtaki 2001-02-13
6146801 Resin-coated carrier, two component type developer, and developing method Tetsuya Ida 2000-11-14
5733702 Image forming method employing toner with external additive Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Tsuyoshi Takiguchi 1998-03-31
5670288 Carrier for electrophotography, two-component type developer, and image forming method Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Makoto Kanbayashi, Tsuyoshi Takiguchi +1 more 1997-09-23
5637432 Toner for developing electrostatic image comprising titanium oxide particles Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Tsuyoshi Takiguchi 1997-06-10
5512402 Carrier for electrophotography, two-component type developer, and image forming method Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Makoto Kanbayashi, Tsuyoshi Takiguchi +1 more 1996-04-30
5456916 Microcapsules containing capsaicine compound and their production Mitsuo Kurata, Mika Toya, Iwao Takahashi, Yoshinobu Okui, Shoichi Kato +1 more 1995-10-10
5322862 Resin molding composition for preventing gnawing damage by animals Mitsuo Kurata, Mika Toya, Iwao Takahashi, Yoshinobu Okui 1994-06-21