HA

Hiromichi Atsuumi

Ricoh Company: 67 patents #96 of 9,818Top 1%
RR Ricoh Technology Research: 1 patents #2 of 9Top 25%
RC Rioch Company: 1 patents #1 of 30Top 4%
Overall (All Time): #30,280 of 4,157,543Top 1%
69
Patents All Time

Issued Patents All Time

Showing 51–69 of 69 patents

Patent #TitleCo-InventorsDate
6771407 Optical scanner and image formation apparatus Yoshinori Hayashi, Seizo Suzuki, Atsushi Kawamura, Kohji Sakai, Akihisa Itabashi 2004-08-03
6697183 Light beam scanning apparatus and image forming system incorporating such apparatus Atsushi Kawamura 2004-02-24
6606179 Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus Seizo Suzuki, Magane Aoki, Kohji Sakai 2003-08-12
6596985 Multi-beam scanning device, multi-beam scanning method, light source device, and image forming apparatus Kohji Sakai, Seizo Suzuki, Akihisa Itabashi 2003-07-22
6509995 Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus Seizo Suzuki, Magane Aoki, Kohji Sakai 2003-01-21
6448998 Scanning and imaging lens, optical scanning device and image forming apparatus Seizo Suzuki, Magane Aoki, Kohji Sakai 2002-09-10
6417509 Optical scanning apparatus and image forming apparatus Seizo Suzuki 2002-07-09
6388792 Optical scanning device and image forming apparatus Seizo Suzuki, Magane Aoki, Kohji Sakai 2002-05-14
6198563 Optical scanning apparatus with improved design flexibility 2001-03-06
6078419 Optical scanning apparatus with design flexibility 2000-06-20
5684618 Image forming mirror for equal speed optical scan and optical scanner 1997-11-04
5606181 Edge emitting type light emitting diode array heads Nobuo Sakuma, Seizo Suzuki, Takeshi Ueda, Yasutaka Izumi 1997-02-25
5504613 Optical scanner Akihisa Itabashi 1996-04-02
5475522 Optical scanner Akihisa Itabashi 1995-12-12
5459601 Optical scanner for reducing shading Seizoh Suzuki, Kenichi Takanashi 1995-10-17
5426298 Optical scanner Nobuo Sakuma, Osamu Endou, Akihisa Itabashi 1995-06-20
5408095 Optical scanner having an image forming mirror and means for reducing scanning line pitch irregularities Nobuo Sakuma, Osamu Endou 1995-04-18
5355244 Optical scanner for reducing shading Seizoh Suzuki, Kenichi Takanashi 1994-10-11
5233454 Image forming reflecting mirror for constant speed optical scan and optical scanner Nobuo Sakuma, Osamu Endou 1993-08-03