Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7329981 | Optical filter and display apparatus with the same | Norihisa Nakao, Daiki Takahashi, Hidemi Matsuda | 2008-02-12 |
| 6570317 | Cathode-ray tube and method for manufacturing the same | Yoshinori Takahashi, Hisashi Chigusa, Katsuyuki Aoki | 2003-05-27 |