Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881630 | Coin discriminating apparatus | Osamu Kobayashi, Osamu Sugimoto, Yonezou Furuya, Takeshi Ishida, Jun Ishii | 1989-11-21 |
| 4875872 | Telephone connector | — | 1989-10-24 |
| 4830843 | Synthetic lamellar magnesium phyllosilicate and process for preparation thereof | Kiochi Usui, Teiji Sato, Noriyuki Takahashi | 1989-05-16 |