AM

Akira Midorikawa

Ricoh Company: 6 patents #3,275 of 9,818Top 35%
Overall (All Time): #893,811 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4912512 Electrophotographic copier with a capability of automatically setting up optimum process conditions Yoshihiro Nakashima, Hirobumi Yoshino 1990-03-27
4682158 Guidance device for manipulation of machine Masaji Ito, Masayuki Shinada, Tatsuo Hirono, Hirobumi Yoshino, Mitsuo Shibusawa 1987-07-21
4677310 Power supply control device for copier having timer Masaji Ito, Masayuki Shinada, Tatsuo Hirono, Hirobumi Yoshino, Mitsuo Shibusawa 1987-06-30
4627707 Copier with image editing function Tatsuo Tani, Masaji Ito, Masashi Kuno, Masayuki Shinada, Hirobumi Yoshino +1 more 1986-12-09
4435074 Cleaning apparatus for electrophotography comprising lubricant film applicator means Kenji Kojima, Kazuo Uchimura 1984-03-06
4423134 Developing unit for electrophotography Seiichi Miyakawa, Kenzo Ariyama, Susumu Tatsumi 1983-12-27