Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377212 | Solid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic wave | Tetsuo Andou, Tsuyoshi Miyai, Sten Helmfrid, Masahiko Takahashi, Koji Muraoka +1 more | 1994-12-27 |
| 5281797 | Short wavelength optical disk head having a changeable aperture | Shigeru Nakamura, Hisataka Sugiyama, Masahiko Takahashi | 1994-01-25 |