Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947213 | Diffractive optical element that polarizes light and an optical pickup using the same | Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Teruhiro Shiono | 2005-09-20 |
| 6903517 | Cold-cathode driver and liquid crystal display | Takahiro Kobayashi | 2005-06-07 |