SO

Seiichi Oseto

Ricoh Company: 3 patents #4,826 of 9,818Top 50%
Overall (All Time): #1,662,281 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5142192 Thin film electroluminescent element Masaetsu Takahashi, Yoshiyuki Kageyama, Kenji Kameyama, Hiroshi Deguchi 1992-08-25
4914348 Electroluminescence multi-color display device Kenji Kameyama, Yoshiyuki Kageyama, Hiroshi Deguchi 1990-04-03
4591262 Electrostatic copying apparatus Itaru Fujimura, Hitoshi Nakamura 1986-05-27