HI

Hitoshi Iwatsuki

Ricoh Company: 53 patents #196 of 9,818Top 2%
RC Rocoh Company: 1 patents #9 of 21Top 45%
Overall (All Time): #46,583 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
7553598 Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method Kousuke Suzuki, Tomio Kondoh, Shinichiro Yagi 2009-06-30
7527908 Carrier, developer, developer container, image forming method and process cartridge Tomio Kondou, Shinichiro Yagi, Kousuke Suzuki 2009-05-05
7381513 Carrier, developer, image forming method and process cartridge for electrostatic image development Kohsuke Suzuki, Tomio Kondoh, Shinichiro Yagi 2008-06-03
7318989 Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method Akihiro Kotsugai, Satoshi Mochizuki, Hisashi Nakajima, Yasuo Asahina, Osamu Uchinokura +8 more 2008-01-15