Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 5050057 | Power source apparatus | Yasuo Notohara, Tsunehiro Endo, Motoo Futami, Shigeru Kishi | 1991-09-17 |
| 4998034 | Low speed high torque motor with production method | Ichiro Hashimoto, Giichi Ishida | 1991-03-05 |
| 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 |
| 4855652 | Speed control apparatus for a brushless direct current motor | Stunehiro Endo, Kunio Miyashita, Susumu Kashiwazaki, Kenichi Iizuka | 1989-08-08 |