HS

Hiroshi Saitoh

Ricoh Company: 10 patents #3 of 695Top 1%
SO Sony: 2 patents #161 of 1,361Top 15%
Overall (1997): #337 of 185,788Top 1%
12
Patents 1997

Issued Patents 1997

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
5697026 Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships Iwao Matsumae, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more 1997-12-09
5697038 Cleaner and toner magazine for electrophotographic apparatus Hirotaka Hatta, Shigemi Kanda, Yozo Matsuura, Masahiko Kamijo 1997-12-09
5689782 Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-11-18
5666625 Device for electrostatically developing a latent image on an image carrier Satoru Komatsubara, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-09-09
RE35528 Image recording apparatus having a toner supply tank and a toner recovery tank configured into a unitary, disposable magazine Yozo Matsuura, Shiroh Kondoh, Kazuhiro Yuasa, Hiroyuki Kiyoi, Masanori Yoshimura +2 more 1997-06-10
5625441 Developing device for an image forming apparatus Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-04-29
5625438 Toner, and devices for electrostatically depositing a uniform application thereof Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-04-29
5625440 Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering Iwao Matsumae, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more 1997-04-29
5617191 Toner conveyor roller and image forming apparatus having the same Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-04-01
5610693 Developing device for an image forming apparatus Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Iwao Matsumae, Yoshiaki Tanaka +6 more 1997-03-11
5598390 Dual more recording and reproducing apparatus having two recording regions using differing reproduction principles Hideki Takahashi 1997-01-28
5592446 Dual mode recording and reproducing apparatus having two recording regions using differing reproduction principles Hideki Takahashi 1997-01-07