Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871442 | Ion sensor | Norio Daikuhara, Takeshi Shimomura | 1989-10-03 |
| 4839020 | Gas sensor | Norio Daikuhara, Takeshi Shimomura | 1989-06-13 |
| 4816118 | Ion-sensitive FET sensor | Noboru Oyama, Takeshi Shimomura | 1989-03-28 |
| 4798664 | Ion sensor | Norihiko Ushizawa, Takeshi Shimomura | 1989-01-17 |