1
Takayuki Kitagawa: Motor control device and motor control method. ASMO, Fay Kaplun & Marcin, February 27, 2007: US07183737 (158 worldwide citation)

A motor control device selectively turns on or off a drive transistor in-accordance with a PWM control signal Sp, such that a drive current Im supplied to a motor is adjusted. The device also samples and holds a motor current Sm for obtaining a motor current value Ih. With reference to the motor cur ...


2
Yukihiro Matsushita, Motoyasu Yano, Masahiko Komoda: Ultrasonic motor having integrated electrodes and manufacturing method of the same. Asmo, Posz Law Group, August 23, 2005: US06933656 (85 worldwide citation)

A stator includes first and second piezoelectric elements, a flexible aluminum-based connective arrangement and upper and lower aluminum-based metal blocks. The flexible aluminum-based connective arrangement includes first to fourth aluminum-based electrodes, which apply a voltage to the piezoelectr ...


3
Masafumi Naito: Circuit and method of driving an ultrasonic motor to method for driving an ultrasonic motor. Asmo, Stetina and Brunda, May 25, 1993: US05214339 (79 worldwide citation)

A device and method are provided for driving an ultrasonic motor. The motor's initial start drive frequency is set higher than the resonant frequency of the motor and an initial target drive frequency is set lower than the resonant frequency. A drive signal is then applied to a piezoelectric element ...


4
Akihiko Suzuki: Control motor integrated with a direct current motor and a speed control circuit. Asmo, Burns Doane Swecker & Mathis, June 2, 1992: US05119466 (76 worldwide citation)

A control motor comprising an integrated direct current motor and speed control circuit, the speed control circuit controlling a rotational speed of the direct current motor by means of changing a voltage applied to an armature by a chopping of a switching element, the speed control circuit being co ...


5
Norikazu Taguchi, Hirozumi Nishizaki, Hisashi Masui, toshiyasu Ishizuka: Stator of electric motor. ASMO, Burns Doane Swecker & Mathis, April 4, 1989: US04818911 (64 worldwide citation)

A stator of an electric motor provides pole retaining portions which retain the poles therein and are radially project at their end portions towards the outer periphery in a ring shape, whereby winding operations around the outer surface of the pole retaining portion are performed from the outside w ...


6
Toshihiko Muraki, Yuichi Shirota, Teruhiko Kameoka, Kazutoshi Kuwayama, Tetsuya Takechi, Hikaru Sugi, Tokuhisa Takeuchi, Mineo Yamaguchi, Yasushi Ueda, Hideyuki Takahashi: Electric power unit. Denso Corporation, Asmo, Pillsbury Winthrop, April 24, 2001: US06220383 (42 worldwide citation)

An electric power unit is composed of a secondary battery, a cooling fan, a fan motor and a case for the secondary battery, the cooling fan and the fan motor. The case has a partition for isolating the fan motor from the secondary battery and cooling fan. A magnetic joint is disposed between the mot ...


7
Satoru Okuya, Eiichi Ohmura, Yaoki Hiraku: Windshield wiper superstructure with airfoil. Toyota Jidosha Kabushiki Kaisha, Asmo, Cushman Darby & Cushman, October 3, 1995: US05454135 (41 worldwide citation)

A vehicle wiper for use with a vehicle windshield includes a first lever having opposing end portions, a plurality of second levers supporting a rubber wiper blade, the first lever having the second levers pivotably connected to the end portions of the first lever while being pivotably held to a wip ...


8
Akira Tsunoda, Takahiko Tanaka, Noboru Handa: Concealed wiper system. ASMO, Burns Doane Swecker & Mathis, August 25, 1987: US04689535 (40 worldwide citation)

This concealed wiper system comprises a wiper motor (1) having a mechanism to house the wiper arm in the retracted position by reversing rotation of the wiper motor; an oscillator (50) in which the oscillation frequency is varied by means of a variable resistor (59) installed within the automobile c ...


9
Keiichi Uemura, Mitsuhiro Kondo: Door member locking/unlocking apparatus. ASMO, Sheridan Ross P C, August 17, 1999: US05938252 (35 worldwide citation)

A door member locking/unlocking apparatus comprises a motor for driving an output shaft rotationally, and a latch rotatably hinged in a position to engage with a striker for retaining a door member in a closed state and urged in a direction to disengage from the striker. A first ratchet regulates th ...


10
Suzuki Hidetoshi, Tanaka Takeshi: Electrostatic actuator with different electrode spacing. Asmo, November 27, 1996: EP0744821-A2 (34 worldwide citation)

In an electro static actuator, a stator element (22) having electrodes (30a, 30b) formed on an insulation layer (29) and a movable element (21) having electrodes (27a, 27b) formed on an insulation layer (26). The movable element is arranged opposite to the stator element so as to be movable with res ...



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