Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665264 | Submerged nozzle mounting/dismounting apparatus | Kenji Yamamoto, Koji Ishii, Koichi Ozawa, Taizo Sera, Jun Kubota | 1997-09-09 |
| 5482192 | Plate brick cartridge for a slide gate valve, and slide gate valve of using the cartridge | Yosuke Kobayashi, Masahiko Nose, Kenji Yamamoto | 1996-01-09 |
| 4609338 | Apparatus for pressure molding firebrick | Shinji Nishida, Takashi Otsuka, Yoshio Nakamori | 1986-09-02 |