Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5505929 | Method for manufacturing high purity graphite material and manufacturing apparatus for use thereof | Tsuyoshi Matsumoto | 1996-04-09 |
| 5419889 | Method for manufacturing high purity graphite material | Tsuyoshi Matsumoto | 1995-05-30 |
| 4503304 | Inductive heating device having a plurality of heating coil units | Yoshihiko Osaki | 1985-03-05 |