Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981506 | Plastic lens and method of manufacturing a plastic lens | Shuji Naito, Hidenori Komai, Yusuke Kutsukake, Katsuyoshi Takeshita | 2011-07-19 |
| 7854508 | Plastic lens and manufacturing method of plastic lens | Mikito Nakajima, Katsuyoshi Takeshita, Yusuke Kutsukake, Shuji Naito, Koichi Takahama +4 more | 2010-12-21 |
| 7572513 | Lens and method of manufacturing lens | Yusuke Kutsukake | 2009-08-11 |
| 6057039 | Coating composition | Katsuyoshi Takeshita | 2000-05-02 |
| 5792822 | Transparent plastic material, optical article based on the material, and production method thereof | Toshiyuki Miyabayashi | 1998-08-11 |