Patents Assigned to Toshio Fukuda
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Publication number: 20080164083Abstract: A vehicle utilizing the attitude control of an inverted pendulum, wherein the attitude of the vehicle is dynamically controlled by moving a balancer. The inclination of a vehicle body is detected by a gyro-sensor, a torque T1 against the inclination of a boarding part is calculated by using the angular acceleration of the vehicle body, and a torque T2 for returning the boarding part in the opposite direction of an inclination direction by canceling that torque is generated by moving the balancer (B). Namely, a reaction torque T3 against the torque T2 is allowed to act on the boarding part by driving the balancer with the torque T2(>T1) in the inclination direction. The boarding part is pushed back in the opposite direction of the first inclination direction by the reaction torque T3.Type: ApplicationFiled: March 9, 2006Publication date: July 10, 2008Applicants: Kabushikikaisha Equos Research, Toshio Fukuda, Takayuki MatsunoInventors: Nobuaki Miki, Munehisa Horiguchi, Takumi Tachibana, Fumihiko Sakakibara, Katsunori Doi, Toshio Fukuda, Takayuki Matsuno
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Patent number: 6140739Abstract: An oscillatory gyroscope having an improved detecting sensitivity. The oscillatory gyroscope includes an elastic metal body in the form of a rectangular column having first to fourth surfaces. The elastic metal body includes a distal portion having a distal through hole extending from the second surface to the fourth surface and a proximal portion having a second through hole extending from the first surface to the third surface. Two first ferroelectric substance films are provided on the first and third surfaces in the distal portion. Two second ferroelectric substance films are provided over the second and fourth surfaces in the proximal portion. First and second electrodes are provided on each of the first ferroelectric substance films, and third and fourth electrodes are provided on the respective second ferroelectric substance films. Voltages of reverse polarities are applied to the first and second electrodes.Type: GrantFiled: May 25, 1999Date of Patent: October 31, 2000Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho, Fumihito Arai, Toshio FukudaInventors: Fumihito Arai, Toshio Fukuda, Koichi Itoigawa, Hitoshi Iwata
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Patent number: 6109104Abstract: A highly sensitive oscillatory gyroscope that includes an elastic metal body in the form of a rectangular column having first to fourth sides. The elastic metal body includes a pair of end segments located at its ends and a pair of middle segments located at an upper middle portion and a lower middle portion of the elastic metal body. Each end segment has an opening extending from the second side to the fourth side, and each middle segment has an opening extending from the first side to the third side. A first ferroelectric substance film is provided on each of the first and third sides at the end segments. A second ferroelectric substance film is provided on each of the second and fourth sides at the middle segments. First and second electrodes are provided on each first ferroelectric substance film at each end segment. Third and fourth electrodes are provided on each second ferroelectric substance film at each middle segment.Type: GrantFiled: June 10, 1999Date of Patent: August 29, 2000Assignees: Fumihito Arai, Toshio Fukuda, Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Toshio Fukuda, Fumihito Arai, Koichi Itoigawa, Hitoshi Iwata
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Patent number: 5288214Abstract: A micropump comprises a housing for defining a pump chamber, an inlet valve disposed in an inlet flow passage, a outlet valve disposed in a outlet flow passage, and an actuator for changing a volume of the pump chamber. The actuator is formed of a thermo-responsive polymer gel material. Fluid is supplied and fed by heating and cooling the actuator.A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator, for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.Type: GrantFiled: September 30, 1992Date of Patent: February 22, 1994Assignees: Toshio Fukuda, Nippon Densan CorporationInventors: Toshio Fukuda, Shinobu Hattori, Shigenobu Nagamori