Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7341349 | Ophthalmologic apparatus and ophthalmologic chart | Yasufumi Fukuma, Takefumi Hayashi, Eiichi Yanagi, Noriyuki Nagai, Yasuo Kato +4 more | 2008-03-11 |
| 7275823 | Optometric device | Yasufumi Fukuma, Takefumi Hayashi, Noriyuki Nagai, Yasuo Kato | 2007-10-02 |