Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887904 | Device for positioning a semi-conductor wafer | Takashi Matsumura, Takahiro Akamatsu, Kenji Fukui | 1989-12-19 |
| 4853880 | Device for positioning a semi-conductor wafer | Takahiro Akamatsu, Takashi Matsumura, Kenji Fukui | 1989-08-01 |
| 4842136 | Dust-proof container having improved construction for holding a reticle therein | Mamoru Iijima | 1989-06-27 |
| 4830182 | Reticle cassette | Mamoru Iijima | 1989-05-16 |
| 4820641 | Monoclonal antibody capable of specifically distinguishing human hepato-carcinoma cells | Toshihiro Nakanishi, Yoshiaki Fukuda, Kenju Miura | 1989-04-11 |