Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6766104 | Apparatus and method for playing back video | Yoshifumi Sakamoto | 2004-07-20 |
| 6740366 | Article having predetermined surface shape and method for preparing the same | Koichiro Nakamura, Mitsuhiro Kawadu, Hiroko Shikata, Hiroaki Yamamoto | 2004-05-25 |
| 6721485 | Echelon diffraction grating and optical waveguide element | Koichiro Nakamura, Hiroaki Yamamoto | 2004-04-13 |