Patents by Inventor Yoshitake Sakai
Yoshitake Sakai 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: 10012202Abstract: A vehicular engine control device provided with a control unit for performing control that automatically stops an engine installed in a vehicle when a preset stop condition is fulfilled, and a traveling information acquiring unit for acquiring travel information including vehicle speed information relating to the speed of the vehicle and steering information relating to a steering wheel. For the stop condition the vehicle speed information and steering information acquired by the traveling information acquiring unit are set including respective thresholds. The control unit switches the stop condition in accordance with changes in the vehicle speed information, the stop condition being sectioned into a plurality of regions using steering thresholds for the steering information relating to the steering handle. Automatic stop control of the engine conforming to the intentions of the driver can be implemented by the vehicular engine control device.Type: GrantFiled: April 3, 2014Date of Patent: July 3, 2018Assignee: Honda Motor Co., Ltd.Inventors: Hiroyuki Koibuchi, Yoshitake Sakai
-
Publication number: 20160069317Abstract: A vehicular engine control device provided with a control unit for performing control that automatically stops an engine installed in a vehicle when a preset stop condition is fulfilled, and a traveling information acquiring unit for acquiring travel information including vehicle speed information relating to the speed of the vehicle and steering information relating to a steering wheel. For the stop condition the vehicle speed information and steering information acquired by the traveling information acquiring unit are set including respective thresholds. The control unit switches the stop condition in accordance with changes in the vehicle speed information, the stop condition being sectioned into a plurality of regions using steering thresholds for the steering information relating to the steering handle. Automatic stop control of the engine conforming to the intentions of the driver can be implemented by the vehicular engine control device.Type: ApplicationFiled: April 3, 2014Publication date: March 10, 2016Inventors: Hiroyuki KOIBUCHI, Yoshitake SAKAI
-
Patent number: 9043119Abstract: Disclosed is an idle stop control device capable of relieving reaction force (kickback) of a handle occurring at idle stop controlled by the control of the idle stop control device. Specifically, an EPSECU (20) detects the rotational speed of an electric motor by detecting the rotational angle (?m) of the electric motor using a resolver (22), and at the same time, detects the steering torque using a torque sensor (23). Subsequently, the EPSECU determines whether or not the rotational speed of the electric motor and the steering torque are inside an idle stop transition area (P) by referring to a table (28) stored in a memory (27) in advance. When either or both of the rotational speed of the electric motor and the steering torque are outside the idle stop transition area (P), a signal requesting the prohibition of idle stop transition is output to an idle stop control device (10) via a cable (15).Type: GrantFiled: September 29, 2010Date of Patent: May 26, 2015Assignee: Honda Motor Co., Ltd.Inventors: Hiroaki Horii, Shinji Hironaka, Yoshitake Sakai, Yuki Shiga, Kyoji Hamamoto, Fumihiro Morishita, Hiroki Sagami, Takuji Wada
-
Publication number: 20120185150Abstract: Disclosed is an idle stop control device capable of relieving reaction force (kickback) of a handle occurring at idle stop controlled by the control of the idle stop control device. Specifically, an EPSECU (20) detects the rotational speed of an electric motor by detecting the rotational angle (?m) of the electric motor using a resolver (22), and at the same time, detects the steering torque using a torque sensor (23). Subsequently, the EPSECU determines whether or not the rotational speed of the electric motor and the steering torque are inside an idle stop transition area (P) by referring to a table (28) stored in a memory (27) in advance. When either or both of the rotational speed of the electric motor and the steering torque are outside the idle stop transition area (P), a signal requesting the prohibition of idle stop transition is output to an idle stop control device (10) via a cable (15).Type: ApplicationFiled: September 29, 2010Publication date: July 19, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Hiroaki Horii, Shinji Hironaka, Yoshitake Sakai, Yuki Shiga, Kyoji Hamamoto, Fumihiro Morishita, Hiroki Sagami, Takuji Wada
-
Patent number: 8186082Abstract: There is provided a fluid pressure drive unit that can fulfill a position holding function stably even when an external force acts during the time when the position is held, the unit being used, for example, for the right and left angle adjustment of a snow plow blade. There is provided a first excessive load relief valve 6 for letting a working fluid escape from a bottom-side pipe line 10a, which connects the bottom-side port of a single-rod double acting cylinder 2 to the bottom side of an operate check valve 4, to a rod-side pipe line 10b, which connects the rod-side port of the single-rod double acting cylinder 2 to the rod side of the operate check valve 4, and there is provided a second excessive load relief valve 7 for letting the working fluid escape from the rod-side pipe line 10b to a tank 3. Also, there is provided a negative pressure preventing check valve 8 for allowing the working fluid to flow into the bottom-side pipeline 10a from the tank 3.Type: GrantFiled: October 23, 2009Date of Patent: May 29, 2012Assignee: KayabaInventors: Osamu Sato, Yoshitake Sakai, Shiro Nishioka
-
Publication number: 20100101120Abstract: There is provided a fluid pressure drive unit that can fulfill a position holding function stably even when an external force acts during the time when the position is held, the unit being used, for example, for the right and left angle adjustment of a snow plow blade. There is provided a first excessive load relief valve 6 for letting a working fluid escape from a bottom-side pipe line 10a, which connects the bottom-side port of a single-rod double acting cylinder 2 to the bottom side of an operate check valve 4, to a rod-side pipe line 10b, which connects the rod-side port of the single-rod double acting cylinder 2 to the rod side of the operate check valve 4, and there is provided a second excessive load relief valve 7 for letting the working fluid escape from the rod-side pipe line 10b to a tank 3. Also, there is provided a negative pressure preventing check valve 8 for allowing the working fluid to flow into the bottom-side pipeline 10a from the tank 3.Type: ApplicationFiled: October 23, 2009Publication date: April 29, 2010Inventors: Osamu Sato, Yoshitake Sakai, Shiro Nishioka
-
Patent number: 7343740Abstract: A filter-integrated orifice element is provided which can reduce manufacturing costs and assembling costs in a hydraulic circuit for which size reduction is desirable. A filter-integrated orifice element is obtained by integrating a filter for removing an obstacle which could block an orifice with an orifice member. The filter-integrated orifice element may be used in a slow return valve in a hydraulic circuit.Type: GrantFiled: March 7, 2006Date of Patent: March 18, 2008Assignee: Kayaba Industry Co., Ltd.Inventors: Yoshitake Sakai, Osamu Sato
-
Publication number: 20070243081Abstract: A hydraulic pump can prevent breakage at a high pressure without providing a separate relief valve. A housing has a body side and a lid side that are divided by a surface perpendicular to a rotational axis of a hydraulic pump shaft. The lid-side housing is brought into oil-tight contact with the body-side housing by a spring. Contact between the body-side housing and the lid-side housing is maintained at a predetermined pressure corresponding to a maximum allowable pump hydraulic pressure.Type: ApplicationFiled: May 18, 2006Publication date: October 18, 2007Inventors: Osamu SATO, Yoshitake SAKAI
-
Patent number: 7281372Abstract: A hydraulic controller in which driving sound and the number of parts can be reduced, and a long service life can be realized, and a hydraulic drive unit provided with said hydraulic controller. The hydraulic controller for a hydraulic drive unit includes a housing that includes an electric motor housing configured to house an electric motor, an oil pump housing configured to house a hydraulic pump, and a valve housing configured to house valves are integrated together.Type: GrantFiled: January 6, 2006Date of Patent: October 16, 2007Assignee: Kayaba Industry Co., Ltd.Inventors: Yoshitake Sakai, Osamu Sato
-
Publication number: 20070199437Abstract: An operate check valve saves space and performs multiple functions by absorbing and integrating a switching valve. A switching valve for controlling the flow of a hydraulic fluid in both normal and reverse directions is coaxially contained with a check valve in a space inside a valve containing housing between a hydraulic pump and a tank for storing the hydraulic fluid. Check valves are located opposite one another on either side of the switching valve, with the switching valve integrated into the operate check valve.Type: ApplicationFiled: February 27, 2006Publication date: August 30, 2007Inventors: Yoshitake Sakai, Osamu Sato
-
Patent number: 7254945Abstract: An operate check valve saves space and performs multiple functions by absorbing and integrating a switching valve. A switching valve for controlling the flow of a hydraulic fluid in both normal and reverse directions is coaxially contained with a check valve in a space inside a valve containing housing between a hydraulic pump and a tank for storing the hydraulic fluid. Check valves are located opposite one another on either side of the switching valve, with the switching valve integrated into the operate check valve.Type: GrantFiled: February 27, 2006Date of Patent: August 14, 2007Assignee: Kayaba Industry Co., Ltd.Inventors: Yoshitake Sakai, Osamu Sato
-
Publication number: 20060242957Abstract: A filter-integrated orifice element is provided which can reduce manufacturing costs and assembling costs in a hydraulic circuit for which size reduction is desirable. A filter-integrated orifice element is obtained by integrating a filter for removing an obstacle which could block an orifice with an orifice member. The filter-integrated orifice element may be used in a slow return valve in a hydraulic circuit.Type: ApplicationFiled: March 7, 2006Publication date: November 2, 2006Inventors: Yoshitake Sakai, Osamu Sato
-
Publication number: 20060168956Abstract: A hydraulic controller in which driving sound and the number of parts can be reduced, and a long service life can be realized, and a hydraulic drive unit provided with said hydraulic controller. The hydraulic controller for a hydraulic drive unit includes a housing that includes an electric motor housing configured to house an electric motor, an oil pump housing configured to house a hydraulic pump, and a valve housing configured to house valves are integrated together.Type: ApplicationFiled: January 6, 2006Publication date: August 3, 2006Inventors: Yoshitake Sakai, Osamu Sato