Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830635 | Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same | Kenji Okinaka | 2004-12-14 |
| 6783608 | Secondary agglomerates of magnetic metal particles for magnetic recording and process for producing the same | Kenji Okinaka, Kohji Mori | 2004-08-31 |
| 6720094 | Secondary agglomerates of magnetic metal particles for magnetic recording and process for producing the same | Kenji Okinaka | 2004-04-13 |