Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668872 | Information processing method and system | Hideki Morishima, Kiyonobu Endo, Susumu Matsumura, Koyo Hasegawa, Masakuni Yamamoto +2 more | 1997-09-16 |
| 5610897 | Optical information reproducing apparatus | Masakuni Yamamoto, Susumu Matsumura, Eiji Yamaguchi | 1997-03-11 |
| 5581532 | Optical information recording/reproducing apparatus for accurately detecting magnetic domain edges | Susumi Matsumura, Masakuni Yamamoto, Eiji Yamaguchi, Hideki Morishima | 1996-12-03 |
| 5577017 | Magnetooptical information recording/reproducing apparatus | Masakuni Yamamoto, Susumu Matsumura, Eiji Yamaguchi | 1996-11-19 |
| 5539718 | Optical head for controlling light irradiation in a magneto-optical recording and/or reproducing apparatus | Susumu Matsumura, Masakuni Yamamoto, Eiji Yamaguchi | 1996-07-23 |
| 5450376 | Optical information recording/reproduction apparatus with super-resolution optical filter | Susumu Matsumura, Masakuni Yamamoto, Eiji Yamaguchi | 1995-09-12 |
| 5380490 | Apparatus for measuring a test specimen | Matsuomi Nishimura, Kazumi Tanaka, Takeshi Miyazaki, Toshikazu Ohnishi, Hidehito Takayama | 1995-01-10 |
| 5365535 | Semiconductor laser and beam splitting devices, and optical information recording/reproducing, optical communication, and optomagnetic recording/reproducing apparatuses using semiconductor laser and beam splitting devices | Eiji Yamaguchi, Masakuni Yamamoto, Sotomitsu Ikeda | 1994-11-15 |
| 5329517 | Optical information recording and reproducing apparatus utilizing a plurality of recording light spots | Eiji Yamaguchi, Susumu Matsumura, Masakuni Yamamoto, Hideki Morishima | 1994-07-12 |
| 5297128 | Optical information recording/reproducing apparatus including means for varying intensity of a preheating light beam | Eiji Yamaguchi, Susumu Matsumura, Masakuni Yamamoto, Hideki Morishima | 1994-03-22 |
| 5233598 | Information recording medium having a plurality of information tracks arranged in a predetermined rectilinear direction | Kiyonobu Endo | 1993-08-03 |
| 5051974 | Optical head device having a light splitter with a diffraction grating structure | Naosato Taniguchi, Kiyonobu Endo, Tetsuro Kuwayama, Hiroshi Osawa, Koyo Hasegawa +1 more | 1991-09-24 |
| 4912311 | Information recording carrier | Koyo Hasegawa, Masakuni Yamamoto | 1990-03-27 |
| 4886959 | Optical information reproducing apparatus | Kozomu Kitagishi | 1989-12-12 |
| 4733065 | Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom | Naosato Taniguchi, Kiyonobu Endo, Tetsuro Kuwayama, Hiroshi Osawa, Yasuo Nakamura | 1988-03-22 |