Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793780 | Rolling piston type rotary machine with discharge passage in vane | Nobuaki Ishihara, Toshihiro Takei, Yoshiyuki Hattori | 1988-12-27 |
| 4669963 | Rolling piston type rotary machine | Nobuaki Ishihara, Toshihiro Takei, Yoshiyuki Hattori | 1987-06-02 |
| 4649096 | Processing compositions for silver complex diffusion transfer process | Yasuo Tsubai, Shoichi Horii, Akio Yoshida | 1987-03-10 |
| 4643962 | Dying etched-bleached silver images using dye solutions with glycol ether | Yasuo Tsubai, Akio Yoshida | 1987-02-17 |
| 4632896 | Processing solution for silver complex diffusion transfer process comprising amino alcohols | Yasuo Tsubai | 1986-12-30 |
| 4605609 | Image receiving material with low calcium gelatin | Yasuo Tsubai, Kimihisa Hamazoe | 1986-08-12 |