AS

Akemi Sugiyama

Ricoh Company: 4 patents #32 of 684Top 5%
Overall (2003): #18,344 of 273,478Top 7%
4
Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6670088 Carrier for two-component developer for developing latent electrostatic images and developer using the carrier Hiroaki Matsuda, Masanori Suzuki, Hiroto Higuchi 2003-12-30
6656654 Toner and two-component developer, container therefor, and image forming apparatus Hiroto Higuchi, Masanori Suzuki, Hiroaki Matsuda 2003-12-02
6544704 Two-component developer, container filled with the two-component developer, and image formation apparatus Hiroaki Matsuda, Masanori Suzuki, Hiroto Higuchi, Tsunemi Sugiyama, Fumihiro Sasaki +3 more 2003-04-08
6534232 ELECTROPHOTOGRAPHIC IMAGE FORMATION METHOD, CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER, CONTAINER HOLDING THEREIN THE TWO-COMPONENT DEVELOPER, AND ELECTROPHOTOGRAPHIC IMAGE FORMATION APPARATUS Hiroaki Matsuda, Masanori Suzuki, Hiroto Higuchi, Tsunemi Sugiyama 2003-03-18