KO

Katsumi Okamoto

SE Seiko Epson: 4 patents #119 of 1,442Top 9%
Overall (2011): #25,729 of 364,097Top 8%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7974549 Developing device and image forming apparatus Takeshi Aoki, Takatomo Fukumoto 2011-07-05
7885554 Developing device, image forming apparatus, image forming system, cartridge, developing unit and photoconductor unit Junji Shirokoshi, Yuichi Segawa, Satoru Miyamoto, Yoichi Yamada, Yasushige Hori +1 more 2011-02-08
7881641 Developing cartridge, developing device, and image forming apparatus Takeshi Aoki, Koji Migita, Makoto Sato, Masashi Nakatsu 2011-02-01
7881644 Developing device and image forming apparatus Koji Migita, Makoto Sato, Takeshi Aoki, Masashi Nakatsu 2011-02-01