Issued Patents All Time
Showing 26–49 of 49 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 |
| 5268912 | Harmonic light source capable of being optically modulated and optical information processing apparatus employing the same | Michael McLoughlin, Tsuyoshi Toda | 1993-12-07 |
| 5208827 | Semiconductor laser device having a transparent waveguide and a large second harmonic generation output | Misuzu Sagawa, Hiroaki Inoue, Masahiro Ojima | 1993-05-04 |
| 5117433 | Second harmonic generator for obtaining an aberration free plane wave and information processing system using the same | Hironori Yanagisawa | 1992-05-26 |
| 4972422 | Second harmonic generator and information processing system using the same | — | 1990-11-20 |
| 4904068 | Optical device with phase-locked diodelaser array | Carolus J. van der Poel, Gerard A. Acket | 1990-02-27 |
| 4822151 | Optical device with phase-locked diodelaser array | Jan Opschoor, Carolus J. van der Poel, Ronald R. Drenten | 1989-04-18 |
| 4791650 | Phased-array semiconductor laser apparatus | Yoshito Tsunoda | 1988-12-13 |
| 4779943 | Optical system for semiconductor laser and optical information processing equipment utilizing the same | Susumu Saito, Akira Arimoto, Keiji Kataoka | 1988-10-25 |
| 4759628 | Wavelength scanning interferometry and interferometer employing laser diode | Yoshito Tsunoda, Masatoshi Ohtake, Keiji Kataoka, Seiji Yonezawa | 1988-07-26 |
| 4688880 | Hologram lens | Keiji Kataoka, Seiji Yonezawa | 1987-08-25 |
| 4689479 | Optical focussing and tracking system using a polarization prism for dividing the reflected beam | Keiji Kataoka | 1987-08-25 |
| 4644160 | System for holding plural light beams in predetermined relative positions | Akira Arimoto, Susumu Saito, Keiji Kataoka | 1987-02-17 |
| 4620768 | Optical scanning system | Keiji Kataoka, Yoshifumi Homma, Yoshifumi Ono | 1986-11-04 |
| 4612555 | Laser beam scanner apparatus | Jinichi Hongou, Yoshifumi Homma, Shoichi Ito | 1986-09-16 |
| 4564268 | Optical system for semiconductor laser | Akira Arimoto | 1986-01-14 |
| 4561717 | Optical system for information processing | Keiji Kataoka, Susumu Saito, Akira Arimoto, Akira Hashimoto | 1985-12-31 |
| 4525024 | Two-beam scanning optical system | Susumu Saito | 1985-06-25 |
| 4513300 | Apparatus for driving a semiconductor laser for use in a laser-beam printer | Susumu Saito, Shoichi Ito, Isamu Terashima, Yoshifumi Homma, Mitsugu Asano +1 more | 1985-04-23 |
| 4301527 | Optical head for a videodisc recorder/player | Yoshito Tsunoda, Toshimitsu Miyauchi, Kazuo Shigematsu | 1981-11-17 |
| 4298974 | Optical head for a videodisc player/recorder | Yoshito Tsunoda, Toshimitsu Miyauchi, Kunio Aiki, Ryoichi Ito | 1981-11-03 |
| 4274101 | Laser recorder with piezoelectric bimorph focal length vibrator | Keiji Kataoka, Susumu Saito | 1981-06-16 |
| 4241240 | Optical information recording apparatus | Kazuo Shigematsu, Keizo Kato, Toshimitsu Miyauchi, Seiji Yonezawa, Fumiyuki Inose +1 more | 1980-12-23 |