Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460349 | Rotary valve unit in a pulse tube refrigerator | Shin Kawano, Masahumi Nogawa, Shinji Katsuragawa | 2002-10-08 |
| 6443816 | Method and apparatus for cleaning polishing surface of polisher | Mitsunori Komatsu | 2002-09-03 |
| 6434947 | Pulse tube refrigerator | Shaowei Zhu, Masahumi Nogawa, Shin Kawano | 2002-08-20 |
| 6393845 | Pulse tube refrigerator | Masafumi Nogawa, Shin Kawano, Shaowei Zhu | 2002-05-28 |
| 6389819 | Pulse tube refrigerator | Shaowei Zhu, Shin Kawano, Masafumi Nogawa | 2002-05-21 |
| 6378277 | Vertical sealing device for vertical type forming, filling and closing machine for flexible packages | Eiji Yoshida, Naohiko Kakutani | 2002-04-30 |
| 6351954 | Pulse tube refrigerator | Masafumi Nogawa, Shaowei Zhu, Shin Kawano | 2002-03-05 |