Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8052033 | Friction stir welding method | Koichi Nakagawa, Qing Liu, Isao Shiozawa | 2011-11-08 |
| 7971770 | Friction stir method | Koichi Nakagawa, Qing Liu, Isao Shiozawa | 2011-07-05 |
TN
Takeo Nakagawa
Fine M-Tec Co.: 2 patents #1 of 4Top 25%
Tencent: 2 patents #116 of 547Top 25%
Overall (2011): #63,821 of 364,097Top 20%
2
Patents 2011