Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154746 | Process and apparatus for forming glass filaments | Keiji Otaki, Mitsuji Yoda, Yukiyoshi Shinobu | 1992-10-13 |
| 4532105 | Casting alloy resistant to corrosion and wear at elevated temperatures | Saburo Kunioka, Tsunehiro Haga, Hatsuo Kawaguti | 1985-07-30 |
| 4392878 | Glass fiber forming unit | Tsunehiro Haga, Masao Kizara, Keiji Otaki, Ayahiro Hirai | 1983-07-12 |