Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7346957 | Vacuum cleaner | Hiroshi Nakamoto, Norihiro Tsuchiya, Yasuhiro Madokoro, Yasuhiro Yuasa, Kazuhisa Morishita | 2008-03-25 |
| 7340798 | Upright vacuum cleaner with spring loaded nozzle | Ron Davis | 2008-03-11 |
| 7222392 | Airflow system for bagless vacuum cleaner | Michael J. McCormick, Henry Marcussen, J. Hitzelberger, Hiroshi Nishimura, Eric J. Streciwilk | 2007-05-29 |
| 7070636 | Cyclonic vacuum cleaner with filter and filter sweeper | Michael J. McCormick, Henry Marcussen, J. Hitzelberger, Richard E. Downey | 2006-07-04 |
| 6957473 | Upright vacuum cleaner with spring loaded nozzle | Ron Davis | 2005-10-25 |
| 6772474 | Upright vacuum cleaner with spring loaded nozzle | Ron Davis | 2004-08-10 |
| 6684451 | Vacuum cleaner | Tomonori Kato, Hiroshi Hayakawa, Naoyuki Ohara, Koichi Ito, Toru Odachi +1 more | 2004-02-03 |
| 6345411 | Vacuum cleaner | Tomonori Kato, Hiroshi Hayakawa, Naoyuki Ohara, Koichi Ito, Toru Odachi +1 more | 2002-02-12 |