Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156699 | Method for producing graphene, and graphene | Takatoshi Yamada, Jaeho Kim, Yoshinori Koga, Masataka Hasegawa, Sumio Iijima | 2015-10-13 |
| 9074278 | Carbon film laminate | Masataka Hasegawa, Yoshinori Koga, Jaeho Kim, Kazuo Tsugawa, Sumio Iijima | 2015-07-07 |
| 8691364 | Laminate, and polishing material and grinding material using the same, and method for producing the laminate | Masataka Hasegawa, Kazuo Tsugawa, Yoshinori Koga | 2014-04-08 |
| 8501276 | Carbon film | Yoshinori Koga, Masataka Hasegawa, Sumio Iijima, Kazuo Tsugawa | 2013-08-06 |
| 8007909 | Carbon film | Yoshinori Koga, Masataka Hasegawa, Sumio Iijima, Kazuo Tsugawa | 2011-08-30 |