Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811884 | Stapler | — | 1989-03-14 |
| 4797143 | Process for the production of optical fiber preforms | Kazunori Chida, Hiroshi Yokota, Michihisa Kyoto, Minoru Watanabe, Naoki Yoshioka | 1989-01-10 |