Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638675 | Black magnetic toner | Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani | 2003-10-28 |
| 6613298 | Trivalent and tetravalent mixed vanadium compound producing method and vanadium electrolyte producing method | Ken Horikawa, Muneo Mita, Nobuyuki Tokuda, Michiru Kubata | 2003-09-02 |
| 6562532 | Black magnetic toner and black magnetic composite particles therefor | Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani | 2003-05-13 |
| 6531211 | Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the same | Kazuyuki Hayashi, Hiroko Morii, Mamoru Kamigaki, Keisuke Iwasaki | 2003-03-11 |
| 6522831 | Reproducing apparatus | Akihiro Oishi | 2003-02-18 |
| 6518355 | Pressure-sensitive rubber adhesive and pressure-sensitive adhesive sheet made using the same | Kazuhiko Shibata | 2003-02-11 |