Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678809 | Spring members | Takao Nakagawa, Mihoko Yamashita, Yasuo Nozaki, Toshihiro Sato | 1997-10-21 |
| 5579898 | Heat-resisting material and conveyer belt using same | Takao Nakagawa | 1996-12-03 |
| 5503783 | Process of making a spring member | Takao Nakagawa, Mihoko Yamashita, Yasuo Nozaki, Toshihiro Sato | 1996-04-02 |
| 5206085 | Preformed yarn useful for forming composite articles and process for producing same | Takao Nakagawa, Mihoko Yamashita, Shoko Namba, Takuya Ueda | 1993-04-27 |
| 4663022 | Process for the production of carbonaceous pitch | Shimpei Gomi, Takuya Ueda, Takao Nakagawa | 1987-05-05 |