Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860523 | Hermetic packaging apparatus | Iwao Teteishi, Yoshiyuki Ogura, Tuguyoshi Ritou, Katsufumi Kajiyama, Fumiaki Shimizu +9 more | 1989-08-29 |
| 4851870 | Shutter apparatus for camera | Yoshihiro Tanaka, Tetsuya Uno, Sadafusa Tsuji, Hiroshi Ootsuka, Shinichi Yokoyama +1 more | 1989-07-25 |