Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7952980 | Optical pickup apparatus | Tohru Hotta | 2011-05-31 |
| 7921437 | Optical pick apparatus | Hiroyuki Shindo | 2011-04-05 |
| 7898919 | Optical pickup apparatus | Shigeki Masaka | 2011-03-01 |
| 7898910 | Optical pickup apparatus | Tohru Hotta | 2011-03-01 |
| 7898929 | Objective lens, and method of manufacturing the same and optical pickup apparatus | Tohru Hotta, Hiroyuki Ichikawa | 2011-03-01 |
| 7848186 | Objective lens and method of manufacturing optical pickup apparatus | Hiroyuki Shindo | 2010-12-07 |
| 7820959 | Photodetector including enhanced light receiving portion | Kenichirou Kawabuchi | 2010-10-26 |
| 7796475 | Optical pickup apparatus | Tohru Hotta | 2010-09-14 |
| 7778119 | Objective lens holding device and optical pickup apparatus | Hiroyuki Shindo | 2010-08-17 |
| 7515361 | Lens holder and optical pickup apparatus having the same | Hiroyuki Shindo | 2009-04-07 |
| 7457055 | Lens driving apparatus and optical pickup unit having the same | Hiroyuki Shindo | 2008-11-25 |
| 5136565 | Optical device for reading and writing data on a recording medium | Noriyoshi Ooyama, Chikashi Yoshinaga | 1992-08-04 |
| 4845699 | Electric mechanical transducer and optical type pickup apparatus driven by a magnetic field | Masami Shimizu, Kozo Suzuki, Noriyoshi Oyama, Tomio Uchida | 1989-07-04 |
| 4811320 | Optical type pickup apparatus with lens holder supported by frame wires each having an end inserted into a frame hole | Masami Shimizu, Kozo Suzuki, Noriyoshi Oyama, Tomio Uchida | 1989-03-07 |
| 4767921 | Optical pickup device wherein the astigmatic converged beam spot is aligned along the dividing lines of the four-division photo-detector | Noriyoshi Ooyama, Masami Shimizu, Kouzou Suzuki | 1988-08-30 |