Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688671 | Mutant aspartokinase gene | Masakazu Sugimoto, Yuri Ogawa, Akiko Tanaka, Hiroshi Matsui | 1997-11-18 |
| 5680007 | Photomultiplier having a photocathode comprised of a compound semiconductor material | Minoru Niigaki, Toru Hirohata, Masami Yamada | 1997-10-21 |
| 5623445 | Semiconductor memory device having data erasing mechanism | Kiyomi Naruke, Seiji Yamada, Etsushi Obi, Masamitsu Oshikiri | 1997-04-22 |