Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277850 | Process for producing a coil-shaped carbon fiber bundle | Eiji Kitajima, Takashi Oyama, Eiji Maruden, Haruki Yamasaki, Susumu Shimizu | 1994-01-11 |
| 5183603 | Process for producing a coil-shaped carbon fiber bundle | Eiji Kitajima, Takashi Oyama, Eiji Maruden, Haruki Yamasaki, Susumu Shimizu | 1993-02-02 |
| 4769139 | Apparatus for production of crystallizable carbonaceous material | Kosaku Noguchi, Honami Tanaka, Yukimasa Kumura, Eiji Kitajima, Toshifumi Ishitobi | 1988-09-06 |
| 4488957 | Method and apparatus for production of crystallizable carbonaceous material | Kosaku Noguchi, Honami Tanaka, Yukimasa Kumura, Eiji Kitajima, Toshifumi Ishitobi | 1984-12-18 |