Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5780141 | Magnetic recording medium | Kiyomi Ejiri, Shinji Saito, Satoru Hayakawa | 1998-07-14 |
| 5763046 | Magnetic recording medium | Kiyomi Ejiri, Shinji Saito, Satoru Hayakawa | 1998-06-09 |
| 5756148 | Magnetic recording medium | Kiyomi Ejiri, Shinji Saito, Satoru Hayakawa | 1998-05-26 |
| 5728454 | Magnetic recording medium | Toshiharu Takeda, Noburo Hibino | 1998-03-17 |
| 5672423 | Magnetic recording medium having an underlayer containing three different powders | Kiyomi Ejiri | 1997-09-30 |
| 5645917 | Magnetic recording medium | Kiyomi Ejiri, Shinji Saito, Satoru Hayakawa | 1997-07-08 |
| 5496607 | Magnetic recording medium | Kiyomi Ejiri, Jun-ichi Nakamikawa, Toshihiko Miura | 1996-03-05 |
| 5489466 | Magnetic recording medium comprising a lower nonmagnetic layer containing a surface coated inorganic powder and an upper magetic layer | Kiyoma Ejiri, Kouichi Masaki, Takeshi Harasawa | 1996-02-06 |
| 5455112 | Magnetic recording medium | Kiyomi Ejiri | 1995-10-03 |
| 5447782 | Magnetic recording medium having a specified thickness relationship between a nonmagnetic underlayer and overcoated magnetic layers | Kiyomi Ejiri, Koji Naoe | 1995-09-05 |
| 5385779 | Magnetic recording medium | Toshihiko Miura | 1995-01-31 |
| 5370932 | Magnetic recording medium | Masatoshi Takahashi, Kazuaki Taga, Keiji Mori | 1994-12-06 |
| 5316845 | Magnetic recording medium comprising two magnetic layers each layer comprising ferromagnetic powder, binder, a branched and unbranched silicone, with carbon black in the upper layer | Masatoshi Takahashi, Kazuaki Taga | 1994-05-31 |
| 5258223 | Magnetic recording medium | Kiyomi Ejiri | 1993-11-02 |
| 5178935 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Naoyoshi Chino, Kazuaki Taga | 1993-01-12 |
| 5175048 | Magnetic recording medium | Masatoshi Takahashi, Kazuaki Taga | 1992-12-29 |
| 5139865 | Magnetic recording medium | Kazuaki Taga, Toshihiko Miura | 1992-08-18 |
| 5126202 | Magnetic recording medium containing ferro magnetic powder, polar group containing resins in a specific ratio and carbon black of a specific size range | Takeshi Kakuta, Koichi Yamauchi, Akihiro Matsufuji | 1992-06-30 |
| 5112680 | Magnetic recording medium | Takeshi Kakuta, Koichi Yamauchi, Akihiro Matsufuji | 1992-05-12 |
| 5098773 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Hitoshi Noguchi | 1992-03-24 |
| 5089317 | Magnetic recording medium | Hitoshi Noguchi, Shinji Saito, Hiroshi Ogawa | 1992-02-18 |
| 5085915 | Magnetic recording medium | Kazuaki Taga, Takeshi Tsuda, Hiroshi Ogawa | 1992-02-04 |
| 5080967 | Magnetic recording medium | Hitoshi Noguchi, Shinji Saito, Hiroshi Ogawa | 1992-01-14 |
| 5075167 | Magnetic recording medium | Koichi Yamauchi, Hiroshi Ogawa | 1991-12-24 |
| 5073406 | Method of producing a magnetic recording medium | Masatoshi Takahashi, Kazuaki Taga | 1991-12-17 |