Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962357 | Taphole mix for molten metal taphole | Hidetoshi Wada, Yoshiyuki Nobuoka | 1999-10-05 |
| 5717991 | Disposable sanitary mask | Satoshi Nozaki, Miki Takahashi | 1998-02-17 |
| D380545 | Disposable sanitary mask | Satoshi Nozaki, Miki Takahashi | 1997-07-01 |
| 5316571 | Alumina-spinel type monolithic refractories | Takashi Yamamura, Yoshihisa Hamazaki, Toshihiko Kaneshige, Makoto Nanba | 1994-05-31 |
| 4981731 | Method for gunning a refractory composition | Eiichi Yorita, Takashi Yamamura, Ichiro Hattori | 1991-01-01 |