Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661994 | Electrophotographic image forming system | Yoshio Ohuchi, Kazuhiro Wakamatsu, Katsumi Kumada, Chikara Hiraoka, Shizuo Tsuruta +6 more | 2003-12-09 |
| 6146094 | Motor-driven blower and method of manufacturing impeller for motor-driven blower | Takeshi Obana, Kiyomi Nakamura, Masahisa Inagaki, Yasuhisa Aono, Hisanori Okamura +1 more | 2000-11-14 |
| 5381584 | Vacuum cleaner | Fumio Jyoraku, Yoshitaro Ishii, Hisanori Toyoshima, Mitsuhisa Kawamata, Haruo Koharagi +6 more | 1995-01-17 |
| 5243732 | Vacuum cleaner with fuzzy logic control | Haruo Koharagi, Kazuo Tahara, Toshiyuki Ajima, Tsunehiro Endo, Mitsuhisa Kawamata +8 more | 1993-09-14 |
| 5155885 | Vacuum cleaner and method for operating the same | Fumio Jyouraku, Yoshitaro Ishii, Kazuo Tahara, Haruo Koharagi | 1992-10-20 |
| 4809394 | Vacuum cleaner having a blower facility structure | Akira Iwao, Kazuhiro Kubota, Yoshitaro Ishii, Masao Sunagawa | 1989-03-07 |