Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4902453 | Process for the preparation of a fiber-reinforced carbon composite | Akimitsu Okura, Toshoku Cho, Takao Nakagawa, Takuya Ueda | 1990-02-20 |
| 4772502 | Preformed yarn useful in forming composite articles and process of producing same | Akimitsu Okura, Toshoku Cho, Takao Nakagawa, Takuya Ueda | 1988-09-20 |
| 4663022 | Process for the production of carbonaceous pitch | Takuya Ueda, Takao Nakagawa, Masaharu Tachibana | 1987-05-05 |
| 4591424 | Method of preparing carbonaceous pitch | Tomio Arai, Fumio Mogi, Takao Nakagawa, Kunio Miura, Sugio Otani | 1986-05-27 |
| 4581124 | Process for thermally cracking heavy hydrocarbon oil | Terukatsu Miyauchi | 1986-04-08 |
| 4554148 | Process for the preparation of carbon fibers | Tomio Arai, Fumio Mogi, Kunio Miura, Sugio Otani | 1985-11-19 |
| 4522627 | Process for producing oil-containing, microspherical carbonaceous particles | Tomomitsu Takeuchi, Itaru Matsuo, Toshio Tsutsui, Takao Nakagawa, Shigeru Miwa | 1985-06-11 |
| 4504455 | Carbonaceous pitch, process for the preparation thereof and use thereof to make carbon fibers | Sugio Otani, Fumio Mogi | 1985-03-12 |
| 4487686 | Process of thermally cracking heavy hydrocarbon oils | Tomio Arai, Tomomitsu Takeuchi, Shigeru Miwa, Toru Takatsuka, Ryuzo Watari | 1984-12-11 |
| 4477334 | Thermal cracking of heavy hydrocarbon oils | Tomomitsu Takeuchi, Itaru Matsuo, Masaki Fujii, Toru Takatsuka, Ryuzo Watari | 1984-10-16 |
| 4240898 | Process for producing high quality pitch | — | 1980-12-23 |