MI

Mitsuaki Ishitoya

RK Riso Kagaku: 10 patents #50 of 551Top 10%
Overall (All Time): #511,308 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
9723175 Image processing apparatus for monochrome conversion and image forming apparatus including the same 2017-08-01
9126419 Image processing device and image processing method Junichi Hakamada, Tsutomu Kurose, Takahiko Nakamura, Kouichi Nobushima, Yoshiyuki Okada 2015-09-08
8885216 Printing method and printing processor for color images Takashi Ebisawa, Yoshiyuki Okada 2014-11-11
8727529 Barcode printing control device Koichi Nobushima, Junichi Hakamada, Tsutomu Kurose, Takahiko Nakamura, Yoshiyuki Okada 2014-05-20
8721065 Ink jet printer and printing method Kenji Oshima, Shoichi Miyata 2014-05-13
7661357 Stencil printing machine with a plurality of drum units and method of controlling the same Takashi Ebisawa 2010-02-16
7409907 Stencil printing machine with a plurality of drum units and method of controlling the same Takashi Ebisawa 2008-08-12
6894807 Method and apparatus for printing a black-and-white image based on color image information Tadakazu Yokoyama 2005-05-17
6595126 Printing control device for printing machine having plural printing drums Noriaki Nagao, Jianmin Xiong, Michael Mehigan, Nami Higashio 2003-07-22
6354201 Stencil printer 2002-03-12