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Three-dimensional memory device containing a polygonal lattice of support pillar structures and contact via structures and methods of manufacturing the same |
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2020-12-22 |
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Three-dimensional memory device having double-width staircase regions and methods of manufacturing the same |
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Power conversion device |
Toshifumi Sakai, Yoshitaka Iwaji, Motomi Shimada |
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Power conversion device and method for controlling thereof |
Yoichiro Arakawa, Yuusuke Arao, Shigehisa Aoyagi |
2014-04-29 |
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Electric motor drive system and electric motor control method |
Toshio Katayama |
2012-02-14 |
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Induction motor drive unit, motor drive system, and elevating system |
Yoichiro Arakawa, Hiroyuki Tomita |
2011-03-08 |
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Electric power converter suppressing output voltage variation due to input voltage fluctuation |
Toshiaki Okuyama, Shigetoshi Okamatsu, Koichi Miyazaki |
2011-01-11 |
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Induction motor controller |
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2010-03-02 |
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Driver for induction motor and method of driving the same |
Toshiaki Okuyama, Kouki Yamamoto, Hiroyuki Tomita |
2009-06-09 |
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Audio visual system |
Hidekazu Suzuki, Yutaka Nio, Masazumi Yamada |
2008-05-27 |
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Driving apparatus for a motor |
Toshiaki Okuyama, Haruo Nemoto, Toshio Katayama |
2008-02-19 |
| 6646896 |
Controller of AC machine |
Yoshitoshi Akita, Toshiaki Okuyama, Shigetoshi Okamatsu |
2003-11-11 |
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Method for calculating inertia moment and driver for electric motor |
Toshiaki Okuyama, Hiroshi Fujii, Shigetoshi Okamatsu |
2003-08-26 |
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Playback control apparatus for controlling a playback unit and a receiver unit |
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2003-02-11 |
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Image display device |
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2002-05-21 |
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Audio amplifier system using a class D amplifier |
— |
2000-02-22 |
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Protective circuit for the CRT and lens |
— |
1999-12-28 |