Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467277 | Cold accumulating material, method of manufacturing the same and refrigerator using the material | Tomohisa Arai | 2002-10-22 |
| 6468440 | Magnet powder and method for producing the same, and bonded magnet using the same | Shinya Sakurada, Tomohisa Arai, Keisuke Hashimoto, Takahiro Hirai | 2002-10-22 |
| 6460348 | Regenerator and cold accumulation refrigerator using the same | Tomohisa Arai | 2002-10-08 |
| 6416593 | Magnetic material and manufacturing method thereof, and bonded magnet using the same | Shinya Sakurada, Tomohisa Arai, Keisuke Hashimoto, Takahiro Hirai | 2002-07-09 |
| 6363727 | Cold accumulating material and cold accumulation refrigerator using the same | Keisuke Hashimoto, Tomohisa Arai | 2002-04-02 |
| 6334909 | Cold-accumulating material and cold-accumulating refrigerator using the same | Tomohisa Arai, Keisuke Hashimoto | 2002-01-01 |