Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590319 | Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling | Yasuyuki Mizushima, Yoshisada Nakamura, Masataka Sato, Hiroki Takahashi | 2009-09-15 |
| 5286703 | Heat-sensitive recording material | Naotaka Wachi, Ken Iwakura, Kensuke Ikeda | 1994-02-15 |