Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786715 | Electrochromic polymer comprising N,N'-diphenyl-N,N'-diphenylene-phenylene diamine units | Masazumi Ishikawa, Yasuhiko Ohsawa, Mikio Kawai, Teruko Yoshimoto | 1988-11-22 |
| 4645307 | Electrochromic device | Takeshi Miyamoto, Mikio Ura, Shigenori Kazama, Yoshiko Maeda | 1987-02-24 |