Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7800301 | Organic electroluminescent device comprising a prism structure | Shun-ichi Ishikawa, Yoshitaka Kitamura, Takayuki Fujiwara | 2010-09-21 |
| 5172470 | Method of and apparatus for shaping film cartridge | Haruo Ichikawa, Koichi Takahashi | 1992-12-22 |
| 5159747 | Film cartridge producing method | Haruo Ichikawa, Koichi Takahashi | 1992-11-03 |