Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501156 | Lead frame which includes a die pad, a support lead, and inner leads | Shin'ichi Ijima, Akio Yoshikawa, Ryuma Hirano | 2002-12-31 |
| 6501601 | Optical device with diffraction grating having plural grating regions | Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Naoki Nakanishi | 2002-12-31 |
| 6473248 | Method for manufacturing an optical pickup | Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Kazutoshi Onozawa, Kazuhiko Yamanaka +1 more | 2002-10-29 |
| 6441402 | Optical electronic apparatus and method for producing the same | Toru Tsuruta, Ryuma Hirano | 2002-08-27 |
| 6407480 | Circuit for driving piezoelectric transformer | Takahiro Kobayashi | 2002-06-18 |