Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6919120 | Plastic molding and a method and a mold assembly for producing the same | Yasuo Yamanaka, Jun Watanabe, Toshiharu Hatakeyama, Hidenobu Kishi | 2005-07-19 |
| 6893586 | Plastic optical element, plastic optical element producing method and plastic optical element producing apparatus | Yasuo Yamanaka, Jun Watanabe | 2005-05-17 |
| 6875380 | Method and apparatus for manufacturing plastic optical element and plastic optical element | Hidenobu Kishi, Yasuo Yamanaka, Jun Watanabe, Toshiharu Hatakeyama | 2005-04-05 |