Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965125 | Magnetic recording medium and the method for preparing the same | Kouichi Masaki, Hideaki Kosha, Toshihiko Miura | 1990-10-23 |
| 4963433 | Magnetic recording medium | Hiroshi Ogawa, Toshio Kawamata | 1990-10-16 |
| 4952064 | Method for preparing magnetic coating compositions | Toshio Ono, Chiaki Mizuno, Hiroshi Ogawa | 1990-08-28 |
| 4857388 | Magnetic recording medium | Hiroshi Ogawa | 1989-08-15 |
| 4847147 | Magnetic recording medium | Masashi Aonuma, Masaaki Suzuki | 1989-07-11 |
| 4820581 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Akihiro Matsufuji | 1989-04-11 |
| 4803120 | Magnetic tape having a leader tape | Hiroshi Ogawa, Chiaki Mizuno | 1989-02-07 |
| 4781964 | Magnetic recording medium | Chiaki Mizuno, Hiroshi Ogawa, Shinji Saito | 1988-11-01 |
| 4780353 | Magnetic recording medium | Masatoshi Takahashi, Chiaki Mizuno, Hiroshi Ogawa, Noburo Hibino | 1988-10-25 |
| 4743487 | Magnetic recording medium | Shinji Saito, Chiaki Mizuno, Hiroshi Ogawa, Noburo Hibino | 1988-05-10 |
| 4728563 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Chiaki Mizuno | 1988-03-01 |
| 4728558 | Magnetic recording medium | Toshio Ono, Chiaki Mizuno, Hiroshi Ogawa, Shinji Saito | 1988-03-01 |
| 4724162 | Process for producing magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Chiaki Mizuno, Toshio Ono | 1988-02-09 |
| 4722862 | Magnetic recording medium | Hiroshi Ogawa, Nobuo Yamazaki | 1988-02-02 |
| 4710421 | Magnetic recording medium | Toshio Ono, Chiaki Mizuno, Hiroshi Ogawa, Shinji Saito | 1987-12-01 |
| 4690857 | Magnetic recording medium | Ryuji Shirahata | 1987-09-01 |
| 4687710 | Magnetic recording medium | Hiroshi Ogawa, Shinji Saito, Chiaki Mizuno | 1987-08-18 |
| 4680225 | Magnetic tape having a leader tape | Hiroshi Ogawa, Chiaki Mizuno, Koozi Kamiyama | 1987-07-14 |
| 4664981 | Magnetic recording medium | Hiroshi Ogawa | 1987-05-12 |
| 4649081 | Magnetic recording medium | Hiroshi Ogawa, Shinji Saito, Chiaki Mizuno | 1987-03-10 |
| 4634632 | Magnetic recording medium | Hiroshi Ogawa, Shinji Saito | 1987-01-06 |
| 4617234 | Magnetic recording medium | Masashi Aonuma | 1986-10-14 |
| 4605597 | Magnetic recording medium | Hiroshi Ogawa | 1986-08-12 |
| 4604296 | Process for production of magnetic recording elements | Masashi Aonuma | 1986-08-05 |
| 4568613 | Copolymer binder for a magnetic recording medium | Shinji Saito, Hiroshi Ogawa | 1986-02-04 |