Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7372784 | Optical head apparatus | — | 2008-05-13 |
| 6785200 | Diffraction grating element and optical pickup device incorporating the same | Fumio Kobayashi | 2004-08-31 |
| 4669359 | Positioning system | — | 1987-06-02 |
| 4546573 | Grinding machine | Shigehiro Fuwa | 1985-10-15 |
| 4543724 | Measuring device for oblique angle | Masakazu Miyashita | 1985-10-01 |
| 4536993 | Grinding machine | Masami Shimizu, Hisao Yoshikawa, Sosaku Kimura, Fumio Maeno, Shigehiro Fuwa +1 more | 1985-08-27 |
| 4523410 | Composite guide mechanism | Junichi Yoshioka, Koichi Koizumi, Akira Kanai | 1985-06-18 |
| 4504048 | Micro-adjustable displacement and rotation setting apparatus | Masao Takahashi, Akira Kanai, Kouichi Koizumi | 1985-03-12 |
| 4481742 | Machine tool elevating and guiding apparatus | Masami Shimizu, Hisao Yoshikawa, Sosaku Kimura, Fumio Maeno, Shigehiro Fuwa +1 more | 1984-11-13 |