TI

Toyoji Ishikawa

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
JE Jeol: 1 patents #309 of 669Top 50%
Overall (All Time): #1,670,326 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4873940 Image developing device Toshio Kaneko, Shuichi Endo, Yoshihiro Ogata, Toshihiko Takaya 1989-10-17
4818874 Scanning electron microscope 1989-04-04
4615607 Dual-color copier Nobuyuki Yanagawa, Tadao Koike, Katsuo Sakai, Hideya Furuta 1986-10-07