Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872662 | Sorting apparatus having sorter connectable to another sorter | Takuma Ishikawa, Akiyoshi Johdai, Kuniaki Ishiguro, Toshio Matsui | 1989-10-10 |
| 4870615 | Nonvolatile floating gate semiconductor memory device | Yukio Wada, Tomohisa Shigematsu, Yasoji Suzuki, Makoto Yoshizawa | 1989-09-26 |