Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824867 | Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same | Kazuyuki Hayashi, Keisuke Iwasaki, Hiroko Morii | 2004-11-30 |
| 6800684 | Composite particles, and tread rubber composition, paint and resin composition using the same | Kazuyuki Hayashi, Hiroko Morii, Keisuke Iwasaki, Yusuke Shimohata | 2004-10-05 |