Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139332 | Optical emission spectrochemical standard for metals and alloys | Sanji Kitaoka, Hisashi Hori, Katsumi Takahashi | 1992-08-18 |
| 4719959 | Apparatus for continuously producing hollow metallic ingot | Katsuzo Ichikawa, Eikichi Sagisaka, Masaharu Sugiyama | 1988-01-19 |