Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092994 | Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump | Shigekazu Yamamoto, Tetsuma Ikegami, Hiroshi Sobukawa, Toshiharu Nakazawa, Yoshinori Ojima | 2000-07-25 |
| 5679992 | Bearing unit | Matsutaro Miyamoto, Toshiharu Nakazawa | 1997-10-21 |
| 5618167 | Vacuum pump apparatus having peltier elements for cooling the motor & bearing housing and heating the outer housing | Yutaka Hirakawa, Toshiharu Nakazawa | 1997-04-08 |