Issued Patents All Time
Showing 101–125 of 182 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648162 | Magneto-optical recording medium and a method of recording and/or reproducing using the same | Junji Hirokane, Akira Takahashi, Kenji Ohta | 1997-07-15 |
| 5643687 | Magneto-optic memory medium and a method for producing the same | Naoyasu Iketani, Junichiro Nakayama, Kenji Ohta | 1997-07-01 |
| 5644566 | Magneto-optical recording medium | Junichiro Nakayama, Michinobu Mieda, Junji Hirokane, Akira Takahashi, Kenji Ohta | 1997-07-01 |
| 5637394 | Magneto-optical recording medium and method of reproducing magneto-optical information using thereof | Junsaku Nakajima, Naoyasu Iketani, Yoshiteru Murakami, Akira Takahashi, Kenji Ohta | 1997-06-10 |
| 5638111 | Optical probe element, and a recording and reproduction device using the optical probe element | Junji Hirokane, Akira Takahashi | 1997-06-10 |
| 5635296 | Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation | Junichiro Nakayama, Michinobu Mieda, Akira Takahashi, Kenji Ohta | 1997-06-03 |
| 5635977 | Optical probe element and a recording and reproduction device using the optical probe element | Junji Hirokane, Akira Takahashi | 1997-06-03 |
| 5615180 | Magneto-optical recording medium and magneto-optical recording apparatus capable of performing a light-modulation overwriting operation | Michinobu Mieda, Junichiro Nakayama, Akira Takahashi, Kenji Ohta | 1997-03-25 |
| 5614823 | Apparatus and method for measuring head speed and opening angle using six sensors arranged in a rectangular format | Shinji Ohshima, Takashi Teraguchi | 1997-03-25 |
| 5600627 | Optical disk and a method for recording, reproducing, and deleting information on and from the optical disk | Junji Hirokane, Akira Takahashi, Kenji Ohta | 1997-02-04 |
| 5554436 | Magneto-optical recording medium | Junichiro Nakayama, Naoyasu Iketani, Kenji Ohta | 1996-09-10 |
| 5544149 | Optical recording medium, and apparatus and method for recording and reproducing information on the same | Junji Hirokane, Akira Takahashi, Kenji Ohta | 1996-08-06 |
| 5530685 | Magneto-optical recording apparatus having paired devices for applying external magnetic fields | Junichiro Nakayama, Michinobu Mieda, Junji Hirokane, Akira Takahashi, Kenji Ohta | 1996-06-25 |
| 5508345 | Resin composition for harness part | Noboru Hirata, Yasushi Kameyama, Masahiro Fukunaga, Okihiro Morimoto | 1996-04-16 |
| 5498485 | Magneto-optical recording medium and manufacturing method thereof | Junichiro Nakayama, Junji Hirokane, Michinobu Mieda | 1996-03-12 |
| 5459711 | Optical recording element and driving system | Kenji Ohta, Tetsuya Inui, Akira Takahashi, Junji Hirokane, Yukinori Nishitani +2 more | 1995-10-17 |
| 5457006 | Method of manufacturing photo-mask and photo-mask manufactured thereby | Junji Hirokane, Akira Takahashi, Tetsuya Inui, Kenji Ohta, Junichi Washo +3 more | 1995-10-10 |
| 5453884 | Magneto-optical recording medium | Kenji Ohta, Junichiro Nakayama | 1995-09-26 |
| 5427833 | Magneto-optical recording medium and method for processing the surface | Junichiro Nakayama, Yoshiteru Murakami, Kenji Ohta | 1995-06-27 |
| 5428585 | Magneto-optical recording medium comprising first, second and third magnetic layers and method of recording on same | Junji Hirokane, Junichiro Nakayama, Akira Takahashi, Kenji Ohta | 1995-06-27 |
| 5425008 | Magneto-optical memory device whereon overwriting operation can be carried out through light intensity modulation and method for recording and erasing using it | Kenji Ohta, Junichiro Nakayama | 1995-06-13 |
| 5422865 | Light modulation method for magneto-optical recording device | Junji Hirokane, Junichiro Nakayama, Akira Takahashi, Kenji Ohta | 1995-06-06 |
| 5414652 | Magneto-optical memory element | Michinobu Mieda, Akira Takahashi, Kenji Ohta | 1995-05-09 |
| 5402408 | Magneto-optical recording method of overwriting without requiring an initialization magnet | Junji Hirokane, Junichiro Nakayama, Michinobu Mieda, Kenji Ohta | 1995-03-28 |
| 5386400 | Magneto-optical head device having a lubricated member | Junichiro Nakayama, Tomoyuki Miyake, Kenji Ohta | 1995-01-31 |