Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475687 | Magnetic composite particles for black magnetic toner and black magnetic toner using the same | Kazuyuki Hayashi, Yusuke Shimohata, Hiroko Morii | 2002-11-05 |
| 6458452 | Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the same | Kazuyuki Hayashi, Yasuyuki Tanaka, Hiroko Morii | 2002-10-01 |
| 6441811 | Display control device and reproduction display device for electronic books | Yuji Sawada, Yasuhisa Nakamura, Hisashi Saiga, Masafumi Yamanoue, Yoshihiro Kitamura | 2002-08-27 |
| 6432508 | High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium | Kazuyuki Hayashi, Yasuyuki Tanaka, Hiroko Morii | 2002-08-13 |
| 6432377 | Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording medium | Kazuyuki Hayashi, Hiroko Morii | 2002-08-13 |
| 6352776 | Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles | Kazuyuki Hayashi, Yasuyuki Tanaka, Hiroko Morii | 2002-03-05 |
| 6350505 | High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium | Kazuyuki Hayashi, Yasuyuki Tanaka, Hiroko Morii | 2002-02-26 |