Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4608087 | Heat-resistant inorganic composition | Shigeo Yoshino, Hajime Asami | 1986-08-26 |
| 4605635 | Carbon-containing refractory | Hiroyuki Kokumai, Shinji Okikawa, Keiji Saito | 1986-08-12 |
| 4435215 | Heat-resistant inorganic compositions | Shigeo Yoshino, Hajime Asami, Michiyuki Irie | 1984-03-06 |
| 4282288 | Graphite refractory article having dense structure with low porosity | Shigeo Yoshino, Hajime Asami, Miki Suma | 1981-08-04 |