Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7758767 | Oxide magnetic material and sintered magnet | Yoshinori Kobayashi, Seiichi Hosokawa | 2010-07-20 |
| 7144642 | Permanent magnet and method for preparation thereof | Etsushi Oda, Seiichi Hosokawa | 2006-12-05 |
| 6994797 | Permanent magnet and method for preparation thereof | Etsushi Oda, Seiichi Hosokawa | 2006-02-07 |
| 6955768 | Permanent magnet and method for preparation thereof | Etsushi Oda, Seiichi Hosokawa | 2005-10-18 |
| 6929758 | Permanent magnet and method for preparation thereof | Etsushi Oda, Seiichi Hosokawa | 2005-08-16 |
| 6902685 | Oxide magnetic material | Isamu Furuchi, Yoshinori Kobayashi | 2005-06-07 |
| 6758986 | Magnet powder and method for preparations thereof | Seiichi Hosokawa | 2004-07-06 |
| 6419847 | Ferrite magnet powder and magnet using said magnet powder, and method for preparing them | Seiichi Hosokawa, Shuji Anamoto, Isamu Furuchi | 2002-07-16 |
| 5866028 | Ferrite magnet, and powder for ferrite magnet and production process thereof | — | 1999-02-02 |
| 5032304 | Method of manufacturing transparent high density ceramic material | — | 1991-07-16 |
| 4746191 | Optical switch | Shojiro Kawakami, Makoto Minakata, Mitsuhiro Takata | 1988-05-24 |