Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821870 | Heterojunction bipolar transistor and method for fabricating the same | Takeshi Takagi, Koichiro Yuki, Yoshihiko Kanzawa | 2004-11-23 |
| 6809953 | Potential generating circuit, potential generating device and semiconductor device using the same, and driving method thereof | Michihito Ueda, Kiyoshi Morimoto, Kiyoyuki Morita, Toru Iwata, Jun Kajiwara | 2004-10-26 |
| 6759697 | Heterojunction bipolar transistor | Koichiro Yuki, Takeshi Takagi, Teruhito Ohnishi, Minoru Kubo | 2004-07-06 |
| 6737977 | Fire detector unit | Takayuki Nishikawa, Shoichi Oka, Koji Sakamoto, Takeshi Wada, Yasuyuki Kawano +2 more | 2004-05-18 |
| 6674150 | Heterojunction bipolar transistor and method for fabricating the same | Takeshi Takagi, Koichiro Yuki, Yoshihiko Kanzawa | 2004-01-06 |