Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6060807 | Rotating shaft support member and small motor | Seiji Kawabata | 2000-05-09 |
| 5979541 | Cooling fan and cooling fan assembly | — | 1999-11-09 |
| 5294872 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more | 1994-03-15 |
| 5166585 | Motor control apparatus for an electric vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more | 1992-11-24 |
| 5075607 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more | 1991-12-24 |
| 4983895 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more | 1991-01-08 |
| 4880474 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more | 1989-11-14 |