Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7777371 | Linear drive apparatus having cores and coils which are positioned on opposite sides of the cores | Houng Joong Kim, Kohji Maki, Hisao Tadokoro, Hideki Shimane, Hitoshi Shibata | 2010-08-17 |
| 7250696 | Linear motor and X-Y stage | Houng Joong Kim, Hitoshi Shibata | 2007-07-31 |
| 7004694 | Linear drive apparatus | Houng Joong Kim, Kohji Maki, Hisao Tadokoro, Hideki Shimane, Hitoshi Shibata | 2006-02-28 |
| 6844700 | Inverter apparatus | Toshiaki Okuyama, Kinya Nakatsu, Hiroyuki Tomita, Junji Kato, Teiichi Furukawa | 2005-01-18 |
| 6741063 | Inverter apparatus | Toshiaki Okuyama, Kinya Nakatsu, Hiroyuki Tomita, Junji Kato, Teiichi Furukawa | 2004-05-25 |
| 6657412 | Pulse width modulation method, pulse width modulator and power converter | Seiji Ishida, Toshiaki Okuyama, Hiroshi Fujii, Hiroyuki Tomita, Tatsuo Ando +2 more | 2003-12-02 |
| 6496397 | Inverter device | Toshiaki Okuyama, Kinya Nakatsu, Seiji Ishida, Hiroshi Fujii, Junji Kato +1 more | 2002-12-17 |
| 6229719 | Method of inverter control and apparatus of the same | Toshiaki Okuyama, Hiroshi Fujii | 2001-05-08 |
| 5475293 | Method for measuring characteristic constants of alternating current motor and controller thereof based on said method | Tsunehiro Endo, Toshiaki Okuyama, Hiroshi Fujii | 1995-12-12 |
| 5184057 | Control method and device for AC motor | Tunehiro Endo, Yuzuru Kubota, Takashi Ikimi, Nobuyoshi Mutoh, Mitsuyuki Honbu | 1993-02-02 |
| 5053690 | Control method of pulse width modulation inverter and pulse width modulation inverter system | Nobuyoshi Mutoh, Hiroshi Fujii, Kenji Nantoh | 1991-10-01 |
| 5023538 | PWM inverter apparatus for controlling rotating magnetic flux in a.c. motors | Nobuyoshi Mutoh, Akiteru Ueda, Hiroshi Fujii | 1991-06-11 |
| 4688162 | Rectifier control apparatus with improved power factor | Nobuyoshi Mutoh, Toshio Suzuki, Akiteru Ueda, Kenji Nandoh, Ikuo Okajima | 1987-08-18 |
| 4599549 | Method and apparatus for controlling PWM inverters | Nobuyoshi Mutoh, Akiteru Ueda, Akira Ishibashi, Ikuo Okajima | 1986-07-08 |
| 4562524 | Control apparatus for PWM inverter | Nobuyoshi Mutoh, Motonobu Hattori, Yuichiro Nagato | 1985-12-31 |
| 4480299 | Method of controlling the output voltage of a pulse width modulation inverter | Nobuyoshi Muto, Yasuo Matsuda, Kenji Nandoh | 1984-10-30 |
| 4437051 | Method and apparatus for controlling induction motor | Nobuyoshi Muto, Hiroshi Nagase, Yasuo Matsuda | 1984-03-13 |
| 4420718 | Control system for induction motor using inverter for AC power supply | Yasuo Matsuda, Mitsuyuki Honbu | 1983-12-13 |
| 4419615 | Method of controlling pulse width modulated inverter for use in induction motor drive | Nobuyoshi Muto, Yasuo Matsuda | 1983-12-06 |