Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667120 | Magnetic recording medium, non-magnetic acicular composite particles and process for producing the particles | Kazuyuki Hayashi, Hiroko Morii | 2003-12-23 |
| 6666914 | Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorant | Kazuyuki Hayashi, Hiroko Morii | 2003-12-23 |
| 6623557 | Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particles | Kazuyuki Hayashi, Hiroko Morii | 2003-09-23 |
| 6596071 | Organic and inorganic composite pigments, and paint and resin composition using the same | Kazuyuki Hayashi, Mineko Ohsugi, Yusuke Shimohata, Hiroko Morii | 2003-07-22 |
| 6569530 | Magnetic recording medium and magnetic composite particles or magnetic recording medium | Kazuyuki Hayashi, Mamoru Kamigaki, Hiroko Morii | 2003-05-27 |
| 6544647 | Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same | Kazuyuki Hayashi, Hiroko Morii, Mineko Ohsugi | 2003-04-08 |
| 6531211 | Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the same | Kazuyuki Hayashi, Hiroko Morii, Mamoru Kamigaki, Yasuyuki Tanaka | 2003-03-11 |