Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8289826 | Optical pickup and optical disc apparatus | Kazuhiko Nemoto, Katsuhiro Seo, Tamotsu Ishii | 2012-10-16 |
| 7986593 | Optical integrated device, method for detecting light, optical pickup, and optical disc apparatus | Takashi Kobayashi, Katsuhiro Seo | 2011-07-26 |
| 7675834 | Optical pickup for three different types of optical discs and recording and/or reproducing apparatus using same | Kenji Yamamoto, Katsutoshi Sato, Noriaki Nishi, Shinya Makita | 2010-03-09 |
| 7583570 | Optical pickup and disc drive apparatus | Hiroaki Yukawa | 2009-09-01 |
| 7564745 | Optical pickup and optical disk apparatus | Katsutoshi Sato, Kenji Yamamoto, Noriaki Nishi, Noriyuki Mori | 2009-07-21 |
| 7483357 | Optical pickup and optical disc apparatus | Kenji Yamamoto, Katsutoshi Sato, Noriaki Nishi | 2009-01-27 |
| 6466375 | Apparatus and method for limiting light divergence angle and projection image display apparatus | — | 2002-10-15 |