Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4439485 | Electric discharge recording materials | Shuji Takemura, Yoshihiko Kawano | 1984-03-27 |
| 4400706 | Discharge recording medium | Shuji Takemura, Tsuneto Yoshizumi | 1983-08-23 |