Issued Patents All Time
Showing 76–100 of 249 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714251 | Magneto-optic memory device | Akira Takahashi, Hiroyuki Katayama, Junji Hirokane, Hideyoshi Yamaoka | 1998-02-03 |
| 5707727 | Magneto-optical recording medium | Akira Takahashi, Yoshiteru Murakami, Junsaku Nakajima, Junichiro Nakayama, Hiroyuki Katayama +1 more | 1998-01-13 |
| 5705286 | Magneto-optical recording medium | Junji Hirokane, Yoshiteru Murakami, Hiroyuki Katayama, Akira Takahashi | 1998-01-06 |
| 5699088 | Recording head for a magnetic printer | Hitoshi Isono, Tetsuya Inui, Junichiro Nakayama | 1997-12-16 |
| 5691963 | Magneto-optical recording device using light-modulated technic without an initial magnetic field | Junji Hirokane, Hiroyuki Katayama, Akira Takahashi | 1997-11-25 |
| 5683803 | Magneto-optical recording medium and method of recording and reproducing using the same | Junichiro Nakayama, Michinobu Mieda, Junji Hirokane, Akira Takahashi | 1997-11-04 |
| 5684519 | Ink jet head with buckling structure body | Hirotsugu Matoba, Tetsuya Inui, Susumu Hirata, Yorishige Ishii, Shingo Abe | 1997-11-04 |
| 5680376 | Optical recording medium, and apparatus and method for recording and reproducing information on the same | Hiroyuki Katayama, Junji Hirokane, Akira Takahashi | 1997-10-21 |
| 5676854 | Optical memory having narrowed track pitch | Tetsuya Inui, Akira Takahashi, Michinobu Mieda, Yoshiteru Murakami | 1997-10-14 |
| RE35629 | Magneto-optical memory element | Yoshiteru Murakami, Akira Takahashi, Kazuo Van, Junichiro Nakayama, Hiroyuki Katayama | 1997-10-14 |
| 5674583 | Optical recording medium and manufacturing method thereof | Junichiro Nakayama, Hiroyuki Katayama, Akira Takahashi, Kazuo Van | 1997-10-07 |
| 5673250 | Optical recording medium having pit rows on every other boundary and reproducing method thereof | Michinobu Mieda, Junji Hirokane, Akira Takahashi, Shigeo Terashima | 1997-09-30 |
| 5666345 | Optical memory medium with predetermined guide tracks and prepits | Akira Takahashi, Tetsuya Inui, Toshihisa Deguchi, Kazuo Van | 1997-09-09 |
| 5666141 | Ink jet head and a method of manufacturing thereof | Hirotsugu Matoba, Susumu Hirata, Yorishige Ishii, Tetsuya Inui, Shingo Abe +1 more | 1997-09-09 |
| 5665467 | Magneto-optical recording medium | Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi | 1997-09-09 |
| 5662988 | Magneto-optical recording medium | Junichiro Nakayama, Hiroyuki Katayama, Akira Takahashi, Yoshiteru Murakami | 1997-09-02 |
| 5656385 | Magnetic recording medium and information recording-reproduction method using the same | Junsaku Nakajima, Akira Takahashi, Junji Hirokane, 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, Akira Takahashi | 1997-07-15 |
| 5645978 | Method for manufacturing optical disk | Tetsuya Inui, Akira Takahashi | 1997-07-08 |
| 5644566 | Magneto-optical recording medium | Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Junji Hirokane, Akira Takahashi | 1997-07-01 |
| 5644466 | Power feed circuit for use in a submarine cable branching unit | Yoshiyuki Inoue | 1997-07-01 |
| 5643687 | Magneto-optic memory medium and a method for producing the same | Naoyasu Iketani, Hiroyuki Katayama, Junichiro Nakayama | 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, Hiroyuki Katayama | 1997-06-10 |
| 5635296 | Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation | Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi | 1997-06-03 |
| 5631096 | Magneto optical memory device | Junsaku Nakajima, Yoshiteru Murakami, Akira Takahashi | 1997-05-20 |