Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597486 | Semiconductor laser and optical system having a collimator lens | Naotaro Nakata | 2003-07-22 |
| 6577386 | Method and apparatus for activating semiconductor impurities | Masatoshi Kitagawa, Masao Uchida, Makoto Kitabatake, Tsuneo Mitsuyu | 2003-06-10 |
| 6518494 | Silicon structure, method for producing the same, and solar battery using the silicon structure | Munehiro Shibuya, Masatoshi Kitagawa, Yuuji Mukai | 2003-02-11 |