Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9254477 | Method for producing catalytic metal layer and method for producing graphene material | Takahiro Maruyama | 2016-02-09 |
| 8277770 | Method of manufacturing carbon nanotube | Yuji Awano, Akio Kawabata, Takahiro Maruyama | 2012-10-02 |
| 5153889 | Semiconductor light emitting device | Hideto Sugawara, Masayuki Ishikawa, Yoshihiro Kokubun, Yukie Nishikawa, Kazuhiko Itaya +2 more | 1992-10-06 |
| 5048035 | Semiconductor light emitting device | Hideto Sugawara, Masayuki Ishikawa, Yoshihiro Kokubun, Yukie Nishikawa | 1991-09-10 |
| 5036521 | Semiconductor laser device | Genichi Hatakoshi, Kazuhiko Itaya, Masayuki Ishikawa, Hajime OKUDA, Hideo Shiozawa +4 more | 1991-07-30 |
| 4893313 | Semiconductor laser device which has a double-hetero structure having an optimal layer thickness | Genichi Hatakoshi, Kazuhiko Itaya, Masayuki Ishikawa, Hajime OKUDA, Hideo Shiozawa +4 more | 1990-01-09 |