Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5444567 | Light control device | — | 1995-08-22 |
| 5402409 | Optical recording apparatus and method for adding information in a sub-scanning direction and for deflecting a light beam to an optimum sub-scanning recording position | Susumu Saito, Yasuyuki Tsuji, Shuuho Yokokawa, Kunitomo Takahashi, Tsukasa Ogawa +2 more | 1995-03-28 |
| 5325172 | Optical system for analyzing samples separated by a centrifugal separator | Sadamoto Tachihara, Masakuni Koreeda | 1994-06-28 |
| 5296995 | Method of magnetically recording and reading data, magnetic recording medium, its production method and magnetic recording apparatus | Seiji Yonezawa, Hajime Fukke, Tsuneo Terasawa, Keizo Kato, Harukazu Miyamoto +3 more | 1994-03-22 |
| 5218377 | Laser printing device with control of oscillation amplitude | Susumu Saito, Takeshi Mochizuki | 1993-06-08 |
| 5170383 | Magneto-optical data recording system | Seiji Yonezawa, Norio Ohta, Toshio Niihara, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1992-12-08 |
| 5142140 | Apparatus for counting particles suspended in a fluid having a polarizing beam splitter | Isao Yamazaki, Hiroshi Ohki, Toshio Kaneko | 1992-08-25 |
| 5134426 | Optical device for generating pattern having uniform light intensity distribution | Seiji Yonezawa, Toshio Kaneko | 1992-07-28 |
| 5005969 | Optical projection apparatus with the function of controlling laser coherency | — | 1991-04-09 |
| 4929044 | Optical pickup using waveguide | Akira Arimoto, Sachiko Ishikawa | 1990-05-29 |
| 4857744 | Optical projection printing apparatus wherein wafer mark has a grating pitch in the sagittal plane of the first optical system | Toshiei Kurosaki, Seiji Yonezawa, Soichi Katagiri | 1989-08-15 |
| 4840447 | Light modulating device array | — | 1989-06-20 |
| 4802153 | Optical information processor and method for accessing rotating record carrier utilizing acousto-optic light deflector including holding a focus error signal during track jumping | Takeshi Maeda, Yoshito Tsunoda | 1989-01-31 |
| 4779943 | Optical system for semiconductor laser and optical information processing equipment utilizing the same | Kimio Tatsuno, Susumu Saito, Akira Arimoto | 1988-10-25 |
| 4759628 | Wavelength scanning interferometry and interferometer employing laser diode | Kimio Tatsuno, Yoshito Tsunoda, Masatoshi Ohtake, Seiji Yonezawa | 1988-07-26 |
| 4750815 | Method and apparatus for generating optical information | Akira Arimoto | 1988-06-14 |
| 4688880 | Hologram lens | Kimio Tatsuno, Seiji Yonezawa | 1987-08-25 |
| 4689479 | Optical focussing and tracking system using a polarization prism for dividing the reflected beam | Kimio Tatsuno | 1987-08-25 |
| 4656618 | Optical information recording and reproducing apparatus | Toshimitsu Kaku, Yoshito Tsunoda, Kazuo Shigematsu | 1987-04-07 |
| 4644160 | System for holding plural light beams in predetermined relative positions | Akira Arimoto, Susumu Saito, Kimio Tatsuno | 1987-02-17 |
| 4640573 | Lens-on-disc type optical scanning apparatus | Susumu Saito | 1987-02-03 |
| 4621892 | Light scanning device using lenses | — | 1986-11-11 |
| 4620768 | Optical scanning system | Kimio Tatsuno, Yoshifumi Homma, Yoshifumi Ono | 1986-11-04 |
| 4561717 | Optical system for information processing | Susumu Saito, Akira Arimoto, Akira Hashimoto, Kimio Tatsuno | 1985-12-31 |
| 4274101 | Laser recorder with piezoelectric bimorph focal length vibrator | Kimio Tatsuno, Susumu Saito | 1981-06-16 |