Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440624 | Starting pitches for carbon fibers | Shunichi Yamamoto, Takao Hirose, Hiroaki Takashima, Osamu Kato | 1984-04-03 |
| 4397830 | Starting pitches for carbon fibers | Shunichi Yamamoto, Takao Hirose, Hiroaki Takashima, Osami Kato | 1983-08-09 |
| 4391788 | Starting pitches for carbon fibers | Shunichi Yamamoto, Takao Hirose, Hiroaki Takashima, Osamu Kato | 1983-07-05 |
| 4261878 | Tap hole mixes | Takao Hirose | 1981-04-14 |
| 4231857 | Process for preparing petroleum-derived binder pitch | Osamu Kato, Syunichi Yamamoto, Takao Hirose, Hiroaki Takashima | 1980-11-04 |
| 4229221 | Method for producing refractories | Syunichi Yamamoto, Takao Hirose, Hiroaki Takashima, Osamu Kato, Minoru Nagai | 1980-10-21 |
| 4220474 | Amorphous refractory compositions | Syunichi Yamamoto, Takao Hirose, Hiroaki Takashima, Osamu Kato, Minoru Nagai | 1980-09-02 |