Patents by Inventor Toshikazu Kawasaki
Toshikazu Kawasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7525275Abstract: An impact absorbing mechanism, provided to a foot 5 of an extremity of each of two movable legs 2 of a bipedal walking robot 1 having the two movable legs 2, includes: an upper base plate 5-a joined to a foot joint 4 of each of the movable legs 2; a lower base plate 5b positioned below the upper base plate, and being opposite to the upper base plate; and three elastic members 6 anisotropic in terms of elasticity, which are arranged at equal intervals in the circumferential direction about the yaw axis YA extending in a direction perpendicular to the upper base plate 5a, between the upper base plate 5a and the lower base plate 5b, each of which allows the lower base plate 5b to make elastic displacement relative to the upper base plate 5a in the same direction as axis YA extends, while each of which inhibits the lower base plate 5b from making elastic displacement relative to the upper base plate 5a in directions orthogonal to the yaw axis direction, and which join the upper base plate 5a and the lower base plType: GrantFiled: September 10, 2003Date of Patent: April 28, 2009Assignee: Kawada IndustriesInventors: Shigehiko Ohta, Toshikazu Kawasaki, Takakatsu Isozumi
-
Publication number: 20060237241Abstract: An impact absorbing mechanism, provided to a foot 5 of an extremity of each of two movable legs 2 of a bipedal walking robot 1 having the two movable legs 2, includes: an upper base plate 5-a joined to a foot joint 4 of each of the movable legs 2; a lower base plate 5b positioned below the upper base plate, and being opposite to the upper base plate; and three elastic members 6 anisotropic in terms of elasticity, which are arranged at equal intervals in the circumferential direction about the yaw axis YA extending in a direction perpendicular to the upper base plate 5a, between the upper base plate 5a and the lower base plate 5b, each of which allows the lower base plate 5b to make elastic displacement relative to the upper base plate 5a in the same direction as axis YA extends, while each of which inhibits the lower base plate 5b from making elastic displacement relative to the upper base plate 5a in directions orthogonal to the yaw axis direction, and which join the upper base plate 5a and the lower base plType: ApplicationFiled: September 10, 2003Publication date: October 26, 2006Inventors: Shigehiko Ohta, Toshikazu Kawasaki, Takakatsu Isozumi
-
Publication number: 20050166687Abstract: A method for detecting a low rigid force and a device therefor are provided in that even a large impact force is applied, by integrating an impact absorbing unit with the force detection mechanism, a force detection mechanism may not be damaged. To that end, between a pair of substrates 2a and 2b opposing each other and undergoing displacement in a direction changing the space between them by an impact force applied thereto, at least one absorption detection mechanism 3 integrally including an impact absorbing unit 4 and a force detecting unit 5 is interposed, so that a force applied between both the substrates 2a and 2b is detected by the force detecting unit 5 while an impact force applied between both the substrates 2a and 2b being absorbed by an elastic force of the impact absorbing unit 4.Type: ApplicationFiled: January 17, 2003Publication date: August 4, 2005Applicants: Nat. Inst. Of Avdanced Industr. Science And Tech., Kawada Industries, Inc.Inventors: Kenji Kaneko, Kazuhito Yokoi, Shuuji Kajita, Fumio Kanehiro, Kiyoshi Fujiwara, Hirohisa Hirukawa, Shigehiko Ota, Toshikazu Kawasaki, Kazuhiko Akachi, Takakatsu Isozumi
-
Patent number: 4495484Abstract: A vehicle such as an automobile includes various auxiliary devices for implementing auxiliary functions such as electrical equipment, windows, doors, a parking brake, a transmission and the like, in addition to a principal scheme for a running operation of the vehicle. The vehicle also includes two alarms, one being provided for raising an alarm inside the vehicle and the other being provided for raising an alarm outside the vehicle. When a driver leaves the vehicle after he ends the drive, a predetermined undesired state of various auxiliary devices, such as a switch for the circuit of electrical equipment being kept turned on, the window or door being not fully closed, the parking brake being not put on and so on is detected, when the key switch is turned off. Upon detection of such undesired state, first the inside alarm is energized and after a predetermined time period the outside alarm is energized.Type: GrantFiled: January 7, 1982Date of Patent: January 22, 1985Assignee: Daihatsu Motor Co., Ltd.Inventors: Shiro Kawakatsu, Toshikazu Kawasaki
-
Patent number: 4353055Abstract: A vehicle such as an automobile comprises various auxiliary devices for implementing auxiliary functions such as electrical equipment, windows, doors, a parking brake, a transmission and the like, in addition to a principal scheme for a running operation of the vehicle. The vehicle also comprises two alarms, one being provided for raising an alarm inside the vehicle and the other being provided for raising an alarm outside the vehicle. When a driver leaves the vehicle after he ends the drive, a predetermined undesired state of various auxiliary devices, such as a switch for the circuit of electrical equipment being kept turned on, the window or door being not fully closed, the parking brake being not put on and so on is detected, when the key switch is turned off. Upon detection of such undesired state, first the inside alarm is energized and after a predetermined time period the outside alarm is energized.Type: GrantFiled: May 14, 1980Date of Patent: October 5, 1982Assignee: Daihatsu Motor Co., Ltd.Inventors: Shiro Kawakatsu, Toshikazu Kawasaki
-
Patent number: 3962612Abstract: A control device is disclosed for an electric car employing a DC shunt motor, the armature, of which, is connected to a storage battery through a first relay contact and two series resistors shunted by second and third relay contacts second and third relays are energized in turn depending upon a degree of depression of an accelerator pedal, so that an armature terminal voltage is controlled to a plurality of values which are dependent upon the degree of pedal depression, the shunt field coil is connected through a field current control circuit for continuously controlling the field current depending upon a degree of depression of the accelerator pedal. In a preferred embodiment transistors are connected in series with the relays such that transistors are controlled by threshold values of rotational speed of the armature and/or an armature current.Type: GrantFiled: October 8, 1974Date of Patent: June 8, 1976Assignee: Daihatsu Motor Co., Inc.Inventor: Toshikazu Kawasaki