Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830438 | Hybrid compressor | Shigeki Iwanami, Yukio Ogawa | 2004-12-14 |
| 6769876 | Centrifugal ventilator fan | Masaharu Sakai, Kouji Matsunaga, Yasushi Mitsuishi | 2004-08-03 |
| 6688121 | Controlled compressor apparatus | Shigeki Iwanami | 2004-02-10 |