Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7155970 | Heat-radiation type flow sensor | Hiromi Ariyoshi | 2007-01-02 |
| 5518804 | Magnetic recording medium | Tsutomu Sugisaki, Masaya Kojima | 1996-05-21 |
| 5300244 | Method of preparing magnetic coating composition | Masatoshi Kiyama, Takao Komi, Hiroshi Ogawa, Masaaki Fujiyama, Shinichi Funabashi | 1994-04-05 |
| 4965120 | Magnetic recording medium | Toshio Ono, Hiroshi Ogawa, Shinji Saito | 1990-10-23 |
| 4952064 | Method for preparing magnetic coating compositions | Toshio Ono, Yasuo Tamai, Hiroshi Ogawa | 1990-08-28 |
| 4946740 | Magnetic recording medium | Toshio Ono, Hiroshi Ogawa, Shinji Saito | 1990-08-07 |
| 4946615 | Method of preparing kneaded mixture for magnetic coating material | Masatoshi Kiyama, Takao Komi, Hiroshi Ogawa, Shinichi Funabashi | 1990-08-07 |
| 4865924 | Magnetic recording medium | Shinji Saito, Toshio Ono, Hiroshi Ogawa | 1989-09-12 |
| 4806417 | Magnetic recording medium | Shinji Saito, Hiroaki Araki, Kiyomi Ejiri, Hiroshi Ogawa | 1989-02-21 |
| 4803120 | Magnetic tape having a leader tape | Hiroshi Ogawa, Yasuo Tamai | 1989-02-07 |
| 4803131 | Magnetic recording medium | Shinji Saito, Hiroaki Araki, Kiyomi Ejiri, Hiroshi Ogawa | 1989-02-07 |
| 4784895 | Magnetic recording medium and process for the preparation of the same | Hiroshi Ogawa, Shinji Saito, Minoru Kanazawa, Naoyoshi Chino | 1988-11-15 |
| 4781964 | Magnetic recording medium | Yasuo Tamai, Hiroshi Ogawa, Shinji Saito | 1988-11-01 |
| 4780353 | Magnetic recording medium | Masatoshi Takahashi, Hiroshi Ogawa, Yasuo Tamai, Noburo Hibino | 1988-10-25 |
| 4743487 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Noburo Hibino, Yasuo Tamai | 1988-05-10 |
| 4728563 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Yasuo Tamai | 1988-03-01 |
| 4728558 | Magnetic recording medium | Toshio Ono, Yasuo Tamai, Hiroshi Ogawa, Shinji Saito | 1988-03-01 |
| 4724162 | Process for producing magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Toshio Ono, Yasuo Tamai | 1988-02-09 |
| 4710421 | Magnetic recording medium | Toshio Ono, Yasuo Tamai, Hiroshi Ogawa, Shinji Saito | 1987-12-01 |
| 4687710 | Magnetic recording medium | Hiroshi Ogawa, Shinji Saito, Yasuo Tamai | 1987-08-18 |
| 4680225 | Magnetic tape having a leader tape | Hiroshi Ogawa, Yasuo Tamai, Koozi Kamiyama | 1987-07-14 |
| 4649081 | Magnetic recording medium | Hiroshi Ogawa, Shinji Saito, Yasuo Tamai | 1987-03-10 |
| 4510203 | Magnetic recording medium | Hiroshi Ogawa, Yasuo Tamai | 1985-04-09 |
| 4500599 | Magnetic recording medium | Hiroshi Ogawa, Kouichi Masaki, Masaaki Suzuki, Yasuo Tamai | 1985-02-19 |
| 4478908 | Magnetic recording medium | Yasuo Tamai | 1984-10-23 |