FJ

Fumio Jyoraku

HI Hitachi: 19 patents #1,906 of 28,497Top 7%
Overall (All Time): #241,034 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
7880358 Rotor of permanent magnet rotating electric machine Tsukasa Taniguchi, Hiroyuki Mikami, Satoshi Kikuchi, Hideyuki Harada 2011-02-01
7768171 Rotor of permanent magnet rotating electric machine Tsukasa Taniguchi, Hiroyuki Mikami, Satoshi Kikuchi, Hideyuki Harada 2010-08-03
7417348 Rotor of permanent magnet rotating electric machine Tsukasa Taniguchi, Hiroyuki Mikami, Satoshi Kikuchi, Hideyuki Harada 2008-08-26
6442792 Vacuum cleaner Takayuki Sudou, Ryuji Ikeda, Susumu Sato, Shigenori Sato, Taiji Tajima +3 more 2002-09-03
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 Hisao Suka, Yoshitaro Ishii, Hisanori Toyoshima, Mitsuhisa Kawamata, Haruo Koharagi +6 more 1995-01-17
5294872 Method and apparatus for operating vacuum cleaner Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more 1994-03-15
5243732 Vacuum cleaner with fuzzy logic control Haruo Koharagi, Kazuo Tahara, Toshiyuki Ajima, Tsunehiro Endo, Hisao Suka +8 more 1993-09-14
RE34286 Method and apparatus for operating vacuum cleaner Hisanori Toyoshima, Yoshitaro Ishii, Kazuo Tahara, Haruo Koharagi, Syuji Watanabe +4 more 1993-06-22
5166585 Motor control apparatus for an electric vacuum cleaner Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more 1992-11-24
5110266 Electric blower having improved return passage for discharged air flow Hisanori Toyoshima, Yoshitaro Ishii, Yukiji Iwase, Shigenori Sato 1992-05-05
5075607 Method and apparatus for operating vacuum cleaner Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more 1991-12-24
5027469 Vacuum cleaner Hisanori Toyoshima, Mitsuhisa Kawamata, Yoshitaro Ishii, Jiro Arai 1991-07-02
4983895 Method and apparatus for operating vacuum cleaner Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more 1991-01-08
4958406 Method and apparatus for operating vacuum cleaner Hisanori Toyoshima, Yoshitaro Ishii, Kazuo Tahara, Haruo Koharagi, Syuji Watanabe +4 more 1990-09-25
4955105 Vacuum cleaner Masao Sunagawa, Yoshitaro Ishii, Susumu Satoo 1990-09-11
4880474 Method and apparatus for operating vacuum cleaner Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii +5 more 1989-11-14
D302878 Electric vacuum cleaner Shigetaka Kimura, Kohichi Hasegawa, Masao Sunagawa, Yoshitaro Ishii 1989-08-15
4767285 Electric blower Hisanori Toyosima 1988-08-30