Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871441 | Ion activity measuring device | Yuzo Tsunekawa, Hikaru Tsuruta | 1989-10-03 |
| 4773969 | Chlorine ion-selective electrode | Kenji Miura, Osamu Seshimoto | 1988-09-27 |
| 4769282 | Magnetic recording medium | Junya Tada, Tomohisa Watanabe, Makoto Akihiro, Kouichi Oka | 1988-09-06 |
| 4689073 | Method for production of rare-earth element/cobalt type magnetic powder for resin magnet | Tatsuo Nate, Koichi Oka | 1987-08-25 |