Issued Patents 1997
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700073 | Braking force control system and the method thereof | Yutaka Hiwatashi, Koji Matsuno, Munenori Matsuura | 1997-12-23 |
| 5691963 | Magneto-optical recording device using light-modulated technic without an initial magnetic field | Junji Hirokane, Hiroyuki Katayama, Kenji Ohta | 1997-11-25 |
| 5691261 | Silicon nitride ceramic | Masaaki Masuda, Keiichiro Watanabe | 1997-11-25 |
| 5684764 | Magneto-optical recording medium having a plurality of magnetic layers | Junji Hirokane, Michinobu Mieda, Junichiro Nakayama | 1997-11-04 |
| 5683803 | Magneto-optical recording medium and method of recording and reproducing using the same | Junichiro Nakayama, Michinobu Mieda, Junji Hirokane, Kenji Ohta | 1997-11-04 |
| 5680376 | Optical recording medium, and apparatus and method for recording and reproducing information on the same | Hiroyuki Katayama, Junji Hirokane, Kenji Ohta | 1997-10-21 |
| RE35629 | Magneto-optical memory element | Yoshiteru Murakami, Kazuo Van, Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta | 1997-10-14 |
| 5676854 | Optical memory having narrowed track pitch | Tetsuya Inui, Kenji Ohta, Michinobu Mieda, Yoshiteru Murakami | 1997-10-14 |
| 5674583 | Optical recording medium and manufacturing method thereof | Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta, Kazuo Van | 1997-10-07 |
| 5675454 | Floating type magnetic head apparatus | Takashi Hatanai | 1997-10-07 |
| 5673250 | Optical recording medium having pit rows on every other boundary and reproducing method thereof | Michinobu Mieda, Junji Hirokane, Kenji Ohta, Shigeo Terashima | 1997-09-30 |
| 5666332 | Magneto-optical recording medium permitting an initializing magnetic field smaller than a recording magnetic field, and method of recording there on | Junichiro Nakayama, Michinobu Mieda, Junji Hirokane | 1997-09-09 |
| 5666345 | Optical memory medium with predetermined guide tracks and prepits | Tetsuya Inui, Kenji Ohta, Toshihisa Deguchi, Kazuo Van | 1997-09-09 |
| 5665467 | Magneto-optical recording medium | Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Kenji Ohta | 1997-09-09 |
| 5662988 | Magneto-optical recording medium | Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta, Yoshiteru Murakami | 1997-09-02 |
| 5659537 | Magneto-optical recording medium and method of reproducing from same | Junji Hirokane, Junichiro Nakayama, Michinobu Mieda | 1997-08-19 |
| 5656385 | Magnetic recording medium and information recording-reproduction method using the same | Junsaku Nakajima, Junji Hirokane, Yoshiteru Murakami, Kenji Ohta | 1997-08-12 |
| 5657299 | Magneto-optical recording medium | Junsaku Nakajima, Yoshiteru Murakami | 1997-08-12 |
| 5648162 | Magneto-optical recording medium and a method of recording and/or reproducing using the same | Junji Hirokane, Hiroyuki Katayama, Kenji Ohta | 1997-07-15 |
| 5645978 | Method for manufacturing optical disk | Tetsuya Inui, Kenji Ohta | 1997-07-08 |
| 5644566 | Magneto-optical recording medium | Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Junji Hirokane, Kenji Ohta | 1997-07-01 |
| 5640374 | Magneto-optical recording medium having intermediate layer of in-plane magnetization and method of reproducing from the medium | Junji Hirokane, Michinobu Mieda, Junichiro Nakayama | 1997-06-17 |
| 5637394 | Magneto-optical recording medium and method of reproducing magneto-optical information using thereof | Junsaku Nakajima, Naoyasu Iketani, Yoshiteru Murakami, Hiroyuki Katayama, Kenji Ohta | 1997-06-10 |
| 5638111 | Optical probe element, and a recording and reproduction device using the optical probe element | Junji Hirokane, Hiroyuki Katayama | 1997-06-10 |
| 5635977 | Optical probe element and a recording and reproduction device using the optical probe element | Junji Hirokane, Hiroyuki Katayama | 1997-06-03 |