Patents by Inventor Yasuhiro Azuma
Yasuhiro Azuma 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).
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Patent number: 11815108Abstract: An electro-hydraulic actuator includes: a motor output rotative power; an external gear pump activated by the motor; a hydraulic actuator operated by a pressurized working fluid supplied by the external gear pump; a manifold block in which a flow channel forming a working fluid circuit of the hydraulic actuator is incorporated; a first portion to store the motor; a second portion to store the external gear pump, the hydraulic actuator, and a reservoir; and a coupling portion to couple the first portion and the second portion in a liquid-tight state. The coupling portion includes a communication hole through which the first portion and the second portion communicate, a rotational shaft of the motor and a driving shaft of the external gear pump are joined to each other, and the external gear pump is attached to the coupling portion while being stored in the manifold block.Type: GrantFiled: November 12, 2021Date of Patent: November 14, 2023Assignee: ICAN COMPANY LTD.Inventors: Toshishige Kasuga, Yasuhiro Azuma
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Publication number: 20230124513Abstract: An electro-hydraulic actuator includes: a motor output rotative power; an external gear pump activated by the motor; a hydraulic actuator operated by a pressurized working fluid supplied by the external gear pump; a manifold block in which a flow channel forming a working fluid circuit of the hydraulic actuator is incorporated; a first portion to store the motor; a second portion to store the external gear pump, the hydraulic actuator, and a reservoir; and a coupling portion to couple the first portion and the second portion in a liquid-tight state. The coupling portion includes a communication hole through which the first portion and the second portion communicate, a rotational shaft of the motor and a driving shaft of the external gear pump are joined to each other, and the external gear pump is attached to the coupling portion while being stored in the manifold block.Type: ApplicationFiled: November 12, 2021Publication date: April 20, 2023Applicant: ICAN COMPANY LTD.Inventors: Toshishige Kasuga, Yasuhiro Azuma
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Patent number: 11173881Abstract: A disc brake device has brake linings attached to brake levers that open and close in the lateral direction and sandwich a brake disc. A linking mechanism including a coupling device including lever mechanisms and a spindle opens and closes in conjunction with the lifting and lowering operation of a rod of a thruster, and the spindle is rotated in one direction by a one-way clutch in accordance with the relative displacement between the lever mechanisms and the coupling device to shorten an overall length of the coupling device, the rotation of the spindle is transmitted to an adjustment bolt screwed to a stopper on the lower end sides of the left and right brake levers via a flexible shaft, and the adjustment bolt protrudes downward with respect to the stopper.Type: GrantFiled: April 5, 2018Date of Patent: November 16, 2021Assignee: ICAN COMPANY LTD.Inventors: Toshishige Kasuga, Yasuhiro Azuma
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Publication number: 20200101947Abstract: A disc brake device has brake linings attached to brake levers that open and close in the lateral direction and sandwich a brake disc. A linking mechanism including a coupling device including lever mechanisms and a spindle opens and closes in conjunction with the lifting and lowering operation of a rod of a thruster, and the spindle is rotated in one direction by a one-way clutch in accordance with the relative displacement between the lever mechanisms and the coupling device to shorten an overall length of the coupling device, the rotation of the spindle is transmitted to an adjustment bolt screwed to a stopper on the lower end sides of the left and right brake levers via a flexible shaft, and the adjustment bolt protrudes downward with respect to the stopper.Type: ApplicationFiled: April 5, 2018Publication date: April 2, 2020Applicant: ICAN COMPANY LTD.Inventors: Toshishige Kasuga, Yasuhiro Azuma
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Patent number: 8683799Abstract: A turbocharger includes a plurality of nozzle vanes provided on an outer circumferential side of a turbine wheel, a variable nozzle vane mechanism adjusting a flow of an exhaust gas with the nozzle vanes, and an actuator driving the nozzle vane mechanism. A control device for the turbocharger continues an abutting control that causes a movable member of the variable nozzle vane mechanism to abut against a stopper that regulates the movable range of the nozzle vanes as long as the engine is stopped while the vehicle is running.Type: GrantFiled: November 12, 2010Date of Patent: April 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yasuhiro Azuma
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Publication number: 20120121392Abstract: In a turbocharger including a variable nozzle vane mechanism including a plurality of nozzle vanes provided on an outer circumferential side of a turbine wheel, the variable nozzle vane mechanism adjusting a flow of an exhaust gas with the nozzle vanes; and an actuator driving the nozzle vane mechanism, a control is continued that causes a movable member of the variable nozzle vane mechanism to abut against a mechanical stopper limiting the range of the movement of the nozzle vanes as long as the engine is stopped while the vehicle is running. Thus, wear of, for example, a link and a rod constituting the variable nozzle vane mechanism can be prevented during an engine stop while the vehicle is running.Type: ApplicationFiled: November 12, 2010Publication date: May 17, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yasuhiro Azuma
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Patent number: 6772698Abstract: The invention is structured such that an additional low-floor Vehicle C (intermediate vehicle) is inserted between a high-floor Vehicle A (leading vehicle) and a Vehicle B (trailing vehicle). Between Vehicle A and Vehicle C and between Vehicle B and Vehicle C, un-motorized idling carriages (10) and (24) are used for articulation, respectively. Therefore, the articulation structure that is used between the conventional Vehicle A and Vehicle B can be used also between Vehicle A and Vehicle C, and between Vehicle C and Vehicle B. In other words, the underframe structure of the Vehicle C rear half section is the same as the underframe structure of the Vehicle A rear half section and the underframe structure of Vehicle C top end section is the same as the underframe structure of Vehicle B top end section.Type: GrantFiled: August 15, 2002Date of Patent: August 10, 2004Assignee: The Kinki Sharyo Co., Ltd.Inventors: Kozo Ueta, Yasuhiro Azuma, Keisuke Yokota, Akihisa Nakazawa
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Publication number: 20030172835Abstract: The invention is structured such that an additional low-floor Vehicle C (intermediate vehicle) is inserted between a high-floor Vehicle A (leading vehicle) and a Vehicle B (trailing vehicle). Between Vehicle A and Vehicle C and between Vehicle B and Vehicle C, un-motorized idling carriages (10) and (24) are used for articulation, respectively. Therefore, the articulation structure that is used between the conventional Vehicle A and Vehicle B can be used also between Vehicle A and Vehicle C, and between Vehicle C and Vehicle B. In other words, the underframe structure of the Vehicle C rear half section is the same as the underframe structure of the Vehicle A rear half section and the underframe structure of Vehicle C top end section is the same as the underframe structure of Vehicle B top end section.Type: ApplicationFiled: August 15, 2002Publication date: September 18, 2003Inventors: Kozo Ueta, Yasuhiro Azuma, Keisuke Yokota, Akihisa Nakazawa