Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827289 | Thermal head | Shiro Tsuji, Eizo Naya, Takashi Yamanaka, Hiroshi Ito, Noriyuki Hasebe | 1989-05-02 |
YU
Yoshihiro Usui
Overall (1989): #40,042 of 140,708Top 30%
1
Patents 1989