Issued Patents All Time
Showing 26–50 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822282 | Magneto-optical recording medium having a plurality of magnetic layers for use in light modulation technique | Michinobu Mieda, Junji Hirokane, Akira Takahashi | 1998-10-13 |
| 5787056 | Magneto-optical recording medium with multiple magnetic layers | Michinobu Mieda, Junji Hirokane, Akira Takahashi | 1998-07-28 |
| 5777953 | Arrangement of magneto-optical recording medium which capable of reproducing an individual bit | Junji Hirokane, Junsaku Nakajima, Akira Takahashi, Kenji Ohta | 1998-07-07 |
| 5768218 | Magneto-optical recording medium having a plurality of magnetic layers | Yoshiteru Murakami, Junji Hirokane, Akira Takahashi | 1998-06-16 |
| 5719831 | Magneto-optical recording medium cartridge which employs magnets | Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta | 1998-02-17 |
| 5707727 | Magneto-optical recording medium | Akira Takahashi, Yoshiteru Murakami, Junsaku Nakajima, Kenji Ohta, Hiroyuki Katayama +1 more | 1998-01-13 |
| 5699088 | Recording head for a magnetic printer | Hitoshi Isono, Tetsuya Inui, Kenji Ohta | 1997-12-16 |
| 5684764 | Magneto-optical recording medium having a plurality of magnetic layers | Junji Hirokane, Michinobu Mieda, Akira Takahashi | 1997-11-04 |
| 5683803 | Magneto-optical recording medium and method of recording and reproducing using the same | Michinobu Mieda, Junji Hirokane, Akira Takahashi, Kenji Ohta | 1997-11-04 |
| RE35629 | Magneto-optical memory element | Yoshiteru Murakami, Akira Takahashi, Kazuo Van, Hiroyuki Katayama, Kenji Ohta | 1997-10-14 |
| 5674583 | Optical recording medium and manufacturing method thereof | Hiroyuki Katayama, Akira Takahashi, Kenji Ohta, Kazuo Van | 1997-10-07 |
| 5666332 | Magneto-optical recording medium permitting an initializing magnetic field smaller than a recording magnetic field, and method of recording there on | Michinobu Mieda, Junji Hirokane, Akira Takahashi | 1997-09-09 |
| 5665467 | Magneto-optical recording medium | Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta | 1997-09-09 |
| 5662988 | Magneto-optical recording medium | Hiroyuki Katayama, Akira Takahashi, Kenji Ohta, Yoshiteru Murakami | 1997-09-02 |
| 5659537 | Magneto-optical recording medium and method of reproducing from same | Junji Hirokane, Michinobu Mieda, Akira Takahashi | 1997-08-19 |
| 5643687 | Magneto-optic memory medium and a method for producing the same | Naoyasu Iketani, Hiroyuki Katayama, Kenji Ohta | 1997-07-01 |
| 5644566 | Magneto-optical recording medium | Michinobu Mieda, Hiroyuki Katayama, Junji Hirokane, Akira Takahashi, 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, Akira Takahashi | 1997-06-17 |
| 5635296 | Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation | Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta | 1997-06-03 |
| 5633838 | Magneto-optical recording medium having two reproduction layers and a method for reproducing thereof | Junji Hirokane, Michinobu Mieda, Akira Takahashi | 1997-05-27 |
| 5629908 | Magneto-optical recording medium having magnetization variable between in-plane magnetization and perpendicular magnetization | Junji Hirokane, Michinobu Mieda, Akira Takahashi | 1997-05-13 |
| 5615180 | Magneto-optical recording medium and magneto-optical recording apparatus capable of performing a light-modulation overwriting operation | Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta | 1997-03-25 |
| 5615182 | Magneto-optical disk and the reproducing method thereof | Yoshiteru Murakami, Junsaku Nakajima, Akira Takahashi, Kenji Ohta | 1997-03-25 |
| 5595805 | Magneto-optical recording medium | Junsaku Nakajima, Akira Takahashi, Kenji Ohta | 1997-01-21 |
| 5554436 | Magneto-optical recording medium | Hiroyuki Katayama, Naoyasu Iketani, Kenji Ohta | 1996-09-10 |