Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804613 | Optical recording medium and optical recording process using such medium | Hiroshi Matsuda, Masahiro Haruta, Hirohide Munakata, Takashi Hamamoto | 1989-02-14 |
YT
Yoshinori Tomita
Overall (1989): #40,113 of 140,708Top 30%
1
Patents 1989