SH

Shuji Hirai

Ricoh Company: 5 patents #145 of 1,683Top 9%
📍 Kawagoe, JP: #6 of 92 inventorsTop 7%
Overall (2011): #14,589 of 364,097Top 5%
5
Patents 2011

Issued Patents 2011

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8027605 Image forming apparatus and image density control method Nobutaka Takeuchi, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Kayoko Tanaka +2 more 2011-09-27
7962054 Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control information Yasushi Nakazato, Kohji Ue, Osamu Satoh, Masahide Yamashita, Jun Yamane +2 more 2011-06-14
7929873 Image forming apparatus and image density control method Nobutaka Takeuchi, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Kayoko Tanaka +4 more 2011-04-19
7903269 Abnormality determining apparatus, image forming apparatus including the abnormality determining apparatus, and abnormality determining method Yoshinori Nakagawa, Hisashi Shoji, Yasushi Nakazato, Satoshi Ouchi, Nekka Matsuura +3 more 2011-03-08
7903986 Reuse method and a reusable device for an image forming apparatus having a first process linear velocity and a second image processing apparatus having a second process linear velocity Kayoko Tanaka, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Nobutaka Takeuchi +2 more 2011-03-08