HH

Hiroyuki Hiratsuka

Ricoh Company: 11 patents #2,054 of 9,818Top 25%
Overall (All Time): #457,576 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
10279604 Printing apparatus and printed material manufacturing method Junji Nakai, Hiroyoshi Matsumoto, Masakazu Yoshida, Souichi Nakazawa, Tatsuro Watanabe +1 more 2019-05-07
9873266 Printing apparatus and printed material manufacturing method Junji Nakai, Hiroyoshi Matsumoto, Masakazu Yoshida, Souichi Nakazawa, Tatsuro Watanabe +1 more 2018-01-23
9623677 Printing apparatus and printed material manufacturing method Junji Nakai, Hiroyoshi Matsumoto, Masakazu Yoshida, Souichi Nakazawa, Tatsuro Watanabe +1 more 2017-04-18
9399358 Image forming apparatus, image forming system, and method of producing printed product Tatsuro Watanabe, Koji Nagai 2016-07-26
9387696 Printing apparatus, printing system, and method for manufacturing printed material Koji Nagai, Satoshi Katoh, Haruki Saitoh 2016-07-12
9352589 Modification device, modification method, computer program product, image forming apparatus, and image forming system Satoshi Katoh, Kengo Tsubaki, Haruki Saitoh 2016-05-31
9259941 Image forming apparatus, image forming system, and method of producing printed product Tatsuro Watanabe, Koji Nagai 2016-02-16
9259924 Printing apparatus and printed material manufacturing method Junji Nakai, Hiroyoshi Matsumoto, Masakazu Yoshida, Souichi Nakazawa, Tatsuro Watanabe +1 more 2016-02-16
9242482 pH detecting device, printing system, and method for manufacturing printed material Haruki Saitoh, Koji Nagai, Satoshi Katoh 2016-01-26
8851643 Inkjet image forming apparatus Kengo Tsubaki, Hiroyoshi Komaba, Tatsuro Watanabe, Yoshiya Itoh 2014-10-07
8136916 Image forming apparatus Yusuke Nemoto, Yoshihiko Kudoh, Akira Saito, Yoshiyuki Shishido, Yukitaka Watarai +2 more 2012-03-20