Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4215030 | Photographic polyester film support | Tsutomu Okita, Noburo Hibino, Kazunobu Katoh, Hiroshi Sawaguchi | 1980-07-29 |
| 4191679 | Photographic polyester film support | Tsutomu Okita, Noburo Hibino, Kazunobu Katoh, Masatoshi Sugiyama | 1980-03-04 |