Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8992634 | Method for dyeing plastic lens | Takaaki Kubotera, Hiroshi Futami | 2015-03-31 |
| 8349027 | Process for producing dyed plastic lens | Misa Mishina, Takaaki Kubotera, Yoko Sakai, Shinichi Yamashita | 2013-01-08 |