YI

Yoshiya Ishiyama

Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
Overall (All Time): #1,612,586 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6634818 Feeder, image-forming device, and remaining amount detecting method Kazuyasu Sato, Takuzou Ikeyama, Shinzo Tanaka, Akinori Murata, Osamu Kajitani 2003-10-21
5852757 Electrophotographic image forming apparatus having a device for recovering residual toner Toshio Tooda, Yoshio Yamaguchi, Nobuo Kuwabara, Mituru Sato, Haruyasu Watanabe +5 more 1998-12-22
5848343 Electrophotographic image-forming apparatus with uniform toner usage control Takefumi Takahashi, Shizuo Takano, Yoshio Yamaguchi, Hiroshi Kera, Akira Nagahara +2 more 1998-12-08