Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387893 | Permanent magnet magnetic circuit and magnetron plasma processing apparatus | Haruo Okano, Isahiro Hasegawa, Junichi Arami, Hiromi Harada | 1995-02-07 |
| 5289152 | Permanent magnet magnetic circuit | Yoshio Ishigaki, Haruo Okano, Isahiro Hasegawa, Jun-ichi Arami, Hiromi Harada | 1994-02-22 |
| 4308155 | Rubber or plastic magnet and magnetic powder for making the same | Takeo Tada, Katsuji Honda | 1981-12-29 |