Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396913 | Electrochromic display device | Masami Shoji, Takashi Aoyama | 1983-08-02 |
| 4326777 | Electrochromic display device | Susumu Kakumoto, Takashi Aoyama, Masami Shoji, Mutsuaki Shinagawa | 1982-04-27 |
| 4309082 | Electrochromic display apparatus | Yoshihisa Komoto, Seizo Nakajima | 1982-01-05 |
| 4181406 | Electrochromic display device | Takashi Aoyama | 1980-01-01 |