Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6354825 | Helical blade fluid compressor having an aluminum alloy rotating member | Takayoshi Fujiwara, Masayuki Okuda, Takashi Honjo, Takuya Hirayama, Tetsuo Fukuda +4 more | 2002-03-12 |
| 5217361 | Fluid compressor having lubrication for two spiral blade compression sections | Takayoshi Fujiwara, Yoshinori Sone, Noritsugu Kawashima, Kazuhisa Sumida | 1993-06-08 |
| 5090874 | Fluid compressor | Eiichi Aikawa, Takayoshi Fujiwara, Hisanori Honma, Yoshinori Sone | 1992-02-25 |
| 5026264 | Fluid compressor | Naoya Morozumi, Hirotsugu Sakata, Makoto Hayano, Masayuki Okuda, Takayoshi Fujiwara +1 more | 1991-06-25 |