Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7724249 | Terminal equipment for merging imaging data and text data, and transmitting and receiving the same on-line | Akira Horikawa, Masanori Kawaguchi, Hirotoshi Umemura, Tetsuo Aoki, Atsurou Noguchi +7 more | 2010-05-25 |
| 7384449 | Ferromagnetic nanoparticles, material coated with dispersion of ferromagnetic nanoparticles, and magnetic recording medium using the material | Yasushi Hattori, Koukichi Waki | 2008-06-10 |
| 6994925 | Magnetic recording medium | — | 2006-02-07 |
| 6790523 | Magnetic recording medium | Takako Ozawa | 2004-09-14 |
| 6770359 | Magnetic recording medium | — | 2004-08-03 |
| 6727009 | Magnetic recording medium comprising a magnetic layer exhibiting low &Dgr;M value | Toshiyuki Suzuki | 2004-04-27 |
| 6689455 | Method of producing hexagonal ferrite and magnetic recording medium using said hexagonal ferrite | — | 2004-02-10 |
| 6638599 | Magnetic recording medium | Toshihiko Miura | 2003-10-28 |
| 6620499 | Magnetic recording medium | — | 2003-09-16 |
| 5962125 | Magnetic recording medium | — | 1999-10-05 |
| 5770302 | Magnetic recording medium | Toshihiko Miura | 1998-06-23 |
| 5698311 | Magnetic recording medium | Toshihiko Miura | 1997-12-16 |
| 5540975 | Magnetic recording medium comprising a magnetic layer of ferromagnetic metal powder and binder resin and having specified magnetic properties | — | 1996-07-30 |
| 5489466 | Magnetic recording medium comprising a lower nonmagnetic layer containing a surface coated inorganic powder and an upper magetic layer | Hiroo Inaba, Kiyoma Ejiri, Takeshi Harasawa | 1996-02-06 |
| 5024885 | Magnetic recording medium | Yasushi Endo, Mikihiko Kato, Toshio Kawamata | 1991-06-18 |
| 5013602 | Magnetic recording medium | Nobuo Yamazaki, Hiroo Inaba | 1991-05-07 |
| 4965125 | Magnetic recording medium and the method for preparing the same | Hideaki Kosha, Toshihiko Miura, Yasuo Tamai | 1990-10-23 |
| 4917947 | Magnetic recording medium | Kideaki Kosha, Kiyomi Ejiri, Toshihiko Miura, Koyotaka Fukino | 1990-04-17 |
| 4713261 | Method for preparing ferromagnetic iron oxide particles | Tatsuji Kitamoto | 1987-12-15 |
| 4500599 | Magnetic recording medium | Hiroshi Ogawa, Chiaki Mizuno, Masaaki Suzuki, Yasuo Tamai | 1985-02-19 |
| 4267207 | Process for producing cobalt-containing ferromagnetic iron oxide powder | Koji Sasazawa, Tatsuji Kitamoto, Goro Akashi, Shinichiro Dezawa | 1981-05-12 |