Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7967057 | Induction melting apparatus employing halide type crucible, process for producing the crucible, method of induction melting, and process for producing ingot of ultrahigh-purity Fe-, Ni-, or Co-based alloy material | Tatsuhiko Kusamichi, Jumpei Nakayama, Kiyoshi Kiuchi | 2011-06-28 |
| 6557378 | Method for pressing oxynitride glass, disk of oxynitride glass made by said method, and pressing die for said method | Katsutoshi Takagi, Moriyoshi Kanamaru, Naoya Fujiwara | 2003-05-06 |
| 6329309 | Glass with high specific rigidity for recording medium | Moriyoshi Kanamaru, Tomoji Takahashi, Takao Kawanaka | 2001-12-11 |