Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672202 | Optical pickup apparatus | Yoshio Hayashi, Noriyoshi Ooyama, Kiyotaka Eizumi | 2010-03-02 |
| 7554751 | Lens and optical pickup device | Ryouichi Kawasaki | 2009-06-30 |
| 6798819 | Optical pickup apparatus and method of manufacturing the same | Ikuo Kasuga | 2004-09-28 |
| 6584061 | Optical pick-up device | Katsushige Yanagisawa, Ikuo Kasuga, Satoru Kishita | 2003-06-24 |
| 6522619 | Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same | Katsushige Yanagisawa, Ikuo Kasuga, Toshihiko Okina, Satoru Kishita, Hidenori Sai | 2003-02-18 |
| 6369963 | Optical pickup apparatus | Ikuo Kasuga, Katsushige Yanagisawa | 2002-04-09 |
| 5049419 | Method for manufacturing a precursor wire for a carbon-fiber-reinforced metal composite material | Tetsuyuki Kyono, Tohru Hanano | 1991-09-17 |
| 4929513 | Preform wire for a carbon fiber reinforced aluminum composite material and a method for manufacturing the same | Tetsuyuki Kyono, Seiichiro Ohnishi, Tohru Hanano | 1990-05-29 |