Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8738320 | Light condensing lens and three-dimensional distance measuring apparatus | Kazumasa Kaneda | 2014-05-27 |
| 8666697 | Light condensing lens and three-dimensional distance measuring apparatus | Kazumasa Kaneda | 2014-03-04 |
| 8102749 | Object lens, optical pickup, and optical disc device | Kazumasa Kaneda, Toshifumi Yasui, Kazuyuki Takahashi | 2012-01-24 |
| 7986595 | Optical pickup and optical device for three different types of optical discs | Kazumasa Kaneda, Kazuyuki Takahashi | 2011-07-26 |
| 7924684 | Object lens, optical pickup, and optical disc device | Kazumasa Kaneda, Toshifumi Yasui, Kazuyuki Takahashi | 2011-04-12 |
| 7535813 | Optical pickup and disc drive apparatus | — | 2009-05-19 |
| 6529454 | Integrated optical component, optical pickup, and optical disc device | Kiyoshi Toyota, Noriaki Nishi | 2003-03-04 |
| 6459672 | Optical head and optical disc device | — | 2002-10-01 |
| 6434104 | Objective lens, optical pickup device and optical disk device | — | 2002-08-13 |
| 6404721 | Optical head and optical disc device | — | 2002-06-11 |
| 6208596 | Optical pickup and optical disk unit | Satoshi Imai | 2001-03-27 |
| 5461224 | Optical pick-up device having light splitting means and focus error and tracking error detection | Yoshiyuki Matsumoto | 1995-10-24 |
| 5428596 | Optical pickup apparatus | Satoshi Hineno, Nobuhiko Ando | 1995-06-27 |
| 4537472 | Objective lens system for microscopes | — | 1985-08-27 |
| 4505553 | Microscope objective | — | 1985-03-19 |