Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887120 | Electronic flash photographing system | Mikio Kobayashi | 1989-12-12 |
| 4809031 | Photometer for use in a camera | Touru Sakaguchi, Akira Takahashi | 1989-02-28 |
| 4798758 | Foam glass having crust layer and method of producing same | Makoto Nagano, Akira Nakanishi, Tomoyoshi Hiraki, Shoji Takahashi, Shuhei Kobayashi +2 more | 1989-01-17 |