Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11473219 | Method for producing a polybenzimidazole carbon fiber | Toshihira IRISAWA, Hiroaki Hatori, Yasushi Soneda | 2022-10-18 |
| 9777408 | Precursor fiber for carbon fibers, carbon fiber, and method for producing carbon fiber | Toshihira IRISAWA, Hiroaki Hatori, Yasushi Soneda | 2017-10-03 |
| 9321649 | Carbon microparticle having lignin as raw material and preparation method therefor | Katsumi Kamegawa, Tsuyoshi Sakaki, Kinya Sakanishi, Keiko Nishikubo, Yoshio Adachi | 2016-04-26 |
| 9281135 | Nitrogen-containing porous carbon material and method of producing the same, and electric double-layer capacitor using the nitrogen-containing porous carbon material | Yasushi Soneda, Takahiro Morishita | 2016-03-08 |
| 8986838 | Hollow carbon microparticle and method for producing same | Katsumi Kamegawa, Tsuyoshi Sakaki, Kinya Sakanishi, Keiko Nishikubo, Yoshio Adachi | 2015-03-24 |
| 6431584 | Air bag apparatus | Norimasa Nagasawa | 2002-08-13 |