Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9200171 | AZO compound and ink containing the compound | Utako Takeda, Shoko Ichinosawa, Yuki Tanaka, Mio Ishida | 2015-12-01 |
| 5965479 | Activated carbon and process for producing the same | Mitsuo Suzuki, Satoshi Hirahara, Kazushi Matsuura, Kohei Okuyama | 1999-10-12 |
| 5643546 | Pitch-type carbon fibers and process for their production | Iwao Yamamoto, Akihiko Yoshiya, Kazuo Shirosaki | 1997-07-01 |
| 5620674 | Carbon fibers and process for their production | Iwao Yamamoto | 1997-04-15 |
| 5612015 | Carbon fibers and process for their production | Iwao Yamamoto | 1997-03-18 |
| 5601794 | Pitch type carbon fibers and process for their production | Iwao Yamamoto, Akihiko Yoshiya, Kazuo Shirosaki | 1997-02-11 |