Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715691 | Electrochromic display using bipolar ion-exchange membrane | Toshikatsu Sata, Teruaki Katsube | 1987-12-29 |
| 4213086 | Selector device for the determination of the type of electroconductivity in semiconductor wafers | Shoichiro Ohga | 1980-07-15 |