Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664748 | Electric vacuum cleaner | Hiroyuki Kushida, Tomokazu Yoshioka, Takuya Ogishima | 2003-12-16 |
| 6624606 | Drive control circuit for three-phase brushless motor, motor-driven blower and electric vacuum cleaner | Hiroyuki Kushida | 2003-09-23 |