YI

Yasuaki Iwamoto

Ricoh Company: 4 patents #32 of 684Top 5%
📍 Numazu, JP: #7 of 94 inventorsTop 8%
Overall (2003): #11,433 of 273,478Top 5%
4
Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6667141 Image forming method and apparatus Fumihiro Sasaki, Hiroaki Matsuda, Hiroshi Nakai, Hiroto Higuchi, Bing Shu +1 more 2003-12-23
6593048 Two-component developer, and image forming apparatus and image forming method using the developer Fumihiro Sasaki, Hiroaki Matsuda, Hiroshi Nakai, Hiroto Higuchi, Hyou Shu +1 more 2003-07-15
6544704 Two-component developer, container filled with the two-component developer, and image formation apparatus Hiroaki Matsuda, Masanori Suzuki, Akemi Sugiyama, Hiroto Higuchi, Tsunemi Sugiyama +3 more 2003-04-08
6503681 Process for the production of toner for developing electrostatic image Nobuyasu Makino, Tomotsugu Miyamoto, Mitsuyoshi Izu, Ryoichi Ito, Kazuyuki Yazaki 2003-01-07