HO

Hisao Okada

HC Hitachi Koki Co.: 2 patents #11 of 142Top 8%
Sharp Kabushiki Kaisha: 1 patents #274 of 990Top 30%
Overall (2003): #29,561 of 273,478Top 15%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6556229 Electrophotographic apparatus having a fringe development preventing mechanism Teruaki Mitsuya, Nobuyoshi Hoshi, Yoshihiko Sano, Shinichi Akatsu, Shinya Kobayashi 2003-04-29
6509895 Voltage generating circuit, and common electrode drive circuit, signal line drive circuit and gray-scale voltage generating circuit for display devices Toshihiro Yanagi, Tadatsugu Nishitani, Yuji Yamamoto, Takeshi Takarada 2003-01-21
6507715 Image forming apparatus having developing supporters 2003-01-14