Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839753 | Information recording disk | Jun Ide, Tomoo Iizumi, Hiroshi Yoshida, Tooru Kaneko, Yuichi Hishi | 1989-06-13 |
| 4818995 | Parallel transmission system | Yasushi Takahashi, Yukio Nakano, Akihiro Hori, Minoru Maeda, Yoshihiko Miyano +2 more | 1989-04-04 |