Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7771546 | Semi-hard magnetic material, bias material for magnetic marker, magnetic marker and production method of bias material for magnetic marker | Shinichiroh Yokoyama, Yoshiyuki Fujihara | 2010-08-10 |
| 6893511 | Production method for semirigid magnetic material and semirigid material and magnetic marker using it | Akira Kawakami, Hideya Yamada | 2005-05-17 |
| 6001194 | Bias material, magnetic marker and method of producing the bias material | Tsutomu Inui, Akira Kawakami | 1999-12-14 |