Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425744 | Helical blade type compressor having a helical blade in a stationary cylinder | Masao Ozu, Takayoshi Fujiwara | 2002-07-30 |
| 6354825 | Helical blade fluid compressor having an aluminum alloy rotating member | Takayoshi Fujiwara, Masayuki Okuda, Takashi Honjo, Takuya Hirayama, Shinobu Sato +4 more | 2002-03-12 |