Patents by Inventor Atsushi Sakuta
Atsushi Sakuta 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: 11614140Abstract: A damping valve includes a valve disc including a passage and a valve seat configured to surround an outlet end of the passage, a leaf valve configured to separate from/sit on the valve seat to open/close the passage, and a biasing part configured to exert a variable biasing force on the leaf valve toward the valve disc, and a gap is provided between the leaf valve and the valve seat.Type: GrantFiled: July 2, 2020Date of Patent: March 28, 2023Assignee: KYB CORPORATIONInventors: Atsushi Sakuta, Yasuhiro Inagaki
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Publication number: 20220282355Abstract: A low-cost hydrogen storage material has hydrogen absorption (storage) and desorption properties suitable for hydrogen storage. A hydrogen storage container including the hydrogen storage material and a hydrogen supply apparatus including the hydrogen storage container are disclosed. The hydrogen storage material includes an alloy having a specific elemental composition represented by Formula (1), in which, in a 1000×COMP image of a cross section of the alloy obtained by EPMA, a plurality of phases enriched with R are present, the phases having phase diameters of 0.1 ?m or more and 10 ?m or less, and 100 or more sets of combinations of two phases in the phases are present in a visual field of 85 ?m×120 ?m in the COMP image, the shortest separation distance between the two phases being 0.5 to 20 ?m. [Chem.Type: ApplicationFiled: August 7, 2020Publication date: September 8, 2022Applicant: SANTOKU CORPORATIONInventors: Takayuki OTSUKI, Hiroki HAYASHI, Yoshiharu TAKATA, Noboru NISHIGAKI, Atsushi SAKUTA
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Patent number: 10830305Abstract: A damping valve includes a valve disc including a passage and a valve seat configured to surround an outlet end of the passage, a leaf valve configured to separate from/sit on the valve seat to open/close the passage, and a biasing part configured to exert a variable biasing force on the leaf valve toward the valve disc, and a gap is provided between the leaf valve and the valve seat.Type: GrantFiled: November 24, 2015Date of Patent: November 10, 2020Assignee: KYB CORPORATIONInventors: Atsushi Sakuta, Yasuhiro Inagaki
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Publication number: 20200332855Abstract: A damping valve includes a valve disc including a passage and a valve seat configured to surround an outlet end of the passage, a leaf valve configured to separate from/sit on the valve seat to open/close the passage, and a biasing part configured to exert a variable biasing force on the leaf valve toward the valve disc, and a gap is provided between the leaf valve and the valve seat.Type: ApplicationFiled: July 2, 2020Publication date: October 22, 2020Applicant: KYB CorporationInventors: Atsushi SAKUTA, Yasuhiro INAGAKI
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Patent number: 10544852Abstract: A damping valve includes a valve disc, a ring-shaped leaf valve, and a biasing mechanism. The valve disc includes a passage and a valve seat. The valve seat surrounds an exit end of the passage. The leaf valve is stacked on the valve disc. The leaf valve separates from and is seated on the valve seat to open and close the passage. The biasing mechanism causes a variable biasing force to act on the leaf valve to the valve disc side. The entire leaf valve is configured to axially retreat with respect to the valve disc. A clearance is formed between the leaf valve and the valve seat in a state in which the leaf valve is stacked on the valve disc with no load.Type: GrantFiled: November 12, 2015Date of Patent: January 28, 2020Assignee: KYB CorporationInventors: Yasuhiro Inagaki, Atsushi Sakuta
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Publication number: 20190128360Abstract: A damping force-adjusting valve includes: a valve disc that includes an annular inner peripheral seat portion on which a leaf valve is stacked, an annular valve seat where the leaf valve is separated/seated, and an annular window provided between the inner peripheral seat portion and the valve seat; and a sustaining portion that is provided between the inner peripheral seat portion and the valve seat and suppresses deformation of the leaf valve. An end of the sustaining portion facing the leaf valve more protrudes toward the leaf valve than an end of the valve seat facing the leaf valve when seen in an axial direction.Type: ApplicationFiled: April 19, 2017Publication date: May 2, 2019Applicant: KYB CORPORATIONInventor: Atsushi SAKUTA
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Publication number: 20190107169Abstract: A damping valve includes: an electromagnetic valve having: a pressure control valve that controls a pressure of an upstream side of the pressure control passage; a shut-off valve integrated into the pressure control valve and provided in an upstream side of the pressure control valve of the pressure control passage to open and close the pressure control passage; and a single solenoid that controls the pressure control valve and the shut-off valve; and a first failsafe valve provided in a first failsafe passage to apply a resistance to a flow of fluid passing therethrough. When the solenoid is not energized, the pressure control valve opens the pressure control passage and the shut-off valve closes the pressure control passage.Type: ApplicationFiled: July 13, 2016Publication date: April 11, 2019Applicant: KYB CorporationInventors: Shinichi HAGIDAIRA, Atsushi SAKUTA
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Publication number: 20190093730Abstract: A shock absorber includes a cap which covers a joint portion between a piston connection member connecting an outer circumference of a rod to a piston and is attached to the outer circumference of the rod and the piston connection member without a gap.Type: ApplicationFiled: April 19, 2017Publication date: March 28, 2019Applicant: KYB CORPORATIONInventors: Atsushi SAKUTA, Shinichi HAGIDAIRA, Ryouta GOMI
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Publication number: 20170328440Abstract: A damping valve includes a valve disc including a passage and a valve seat configured to surround an outlet end of the passage, a leaf valve configured to separate from/sit on the valve seat to open/close the passage, and a biasing part configured to exert a variable biasing force on the leaf valve toward the valve disc, and a gap is provided between the leaf valve and the valve seat.Type: ApplicationFiled: November 24, 2015Publication date: November 16, 2017Applicant: KYB CorporationInventors: Atsushi SAKUTA, Yasuhiro INAGAKI
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Publication number: 20170268595Abstract: A damping valve includes a valve disc, a ring-shaped leaf valve, and a biasing mechanism. The valve disc includes a passage and a valve seat. The valve seat surrounds an exit end of the passage. The leaf valve is stacked on the valve disc. The leaf valve separates from and is seated on the valve seat to open and close the passage. The biasing mechanism causes a variable biasing force to act on the leaf valve to the valve disc side. The entire leaf valve is configured to axially retreat with respect to the valve disc. A clearance is formed between the leaf valve and the valve seat in a state in which the leaf valve is stacked on the valve disc with no load.Type: ApplicationFiled: November 12, 2015Publication date: September 21, 2017Applicant: KYB CorporationInventors: Yasuhiro INAGAKI, Atsushi SAKUTA
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Patent number: 9702425Abstract: A rotary damper includes: a shaft having a hollow portion; a pair of side panels; a case provided between the pair of side panels; a vane provided on the shaft so as to divide a first chamber and a second chamber; a liquid chamber defined within the hollow portion; a first partition wall and a second partition wall housed in the hollow portion; a first side valve chamber that is defined by the first partition wall; a second side valve chamber that is defined by the second partition wall; a first side port that connects the first side valve chamber to a second liquid chamber; a second side port that connects the second side valve chamber to the second liquid chamber; a first side damping valve capable of opening and closing the first side port; and a second side damping valve capable of opening and closing the second side port.Type: GrantFiled: March 1, 2013Date of Patent: July 11, 2017Assignee: KYB CorporationInventor: Atsushi Sakuta
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Patent number: 9404550Abstract: A rotary damper includes: a shaft capable of rotating about a central axis; a pair of side panels that support the shaft rotatably; a case provided between the pair of side panels such that an operating chamber is defined in an interior thereof; a vane provided on the shaft such that a tip end thereof slides against an inner periphery of the case, thereby dividing the operating chamber into a first chamber and a second chamber; and a damping valve provided in the shaft to apply resistance to a flow of a fluid traveling between the first chamber and the second chamber.Type: GrantFiled: March 1, 2013Date of Patent: August 2, 2016Assignee: KYB CorporationInventor: Atsushi Sakuta
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Publication number: 20150014105Abstract: A rotary damper includes: a shaft having a hollow portion; a pair of side panels; a case provided between the pair of side panels; a vane provided on the shaft so as to divide a first chamber and a second chamber; a liquid chamber defined within the hollow portion; a first partition wall and a second partition wall housed in the hollow portion; a first side valve chamber that is defined by the first partition wall; a second side valve chamber that is defined by the second partition wall; a first side port that connects the first side valve chamber to a second liquid chamber; a second side port that connects the second side valve chamber to the second liquid chamber; a first side damping valve capable of opening and closing the first side port; and a second side damping valve capable of opening and closing the second side port.Type: ApplicationFiled: March 1, 2013Publication date: January 15, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Atsushi Sakuta
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Publication number: 20150008082Abstract: A rotary damper includes: a shaft capable of rotating about a central axis; a pair of side panels that support the shaft rotatably; a case provided between the pair of side panels such that an operating chamber is defined in an interior thereof; a vane provided on the shaft such that a tip end thereof slides against an inner periphery of the case, thereby dividing the operating chamber into a first chamber and a second chamber; and a damping valve provided in the shaft to apply resistance to a flow of a fluid traveling between the first chamber and the second chamber.Type: ApplicationFiled: March 1, 2013Publication date: January 8, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Atsushi Sakuta
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Patent number: 8499903Abstract: In a suspension device (S) comprising a motion transforming mechanism (T) for transforming a linear motion of a linear motion member (1) into a rotational motion of a rotating member (2) and a motor (M) connected to the rotating member (2) in the motion transforming mechanism (T), an air spring (AS) is provided, the air spring (AS) including a tubular air chamber (22) connected to the motor (M), an air piston (37) connected to the linear motion member (1) and being tubular and smaller in diameter than the air chamber (22), and a diaphragm (27) interposed between the air chamber (22) and the air piston (37), a stopper (38a) is provided on an outer periphery of the air piston (37), and a stopper seat (46) is provided on an inner periphery of the air chamber (22) so as to be put in abutment against the stopper (38a) upon maximum extension of the suspension device involving relative separation of the air chamber (22) and the air piston (37) with respect to each other.Type: GrantFiled: June 18, 2009Date of Patent: August 6, 2013Assignees: Kayaba Industry Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Atsushi Sakuta, Takuhiro Kondo, Takayuki Tachi
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Patent number: 8291785Abstract: A ball screw includes a screw shaft, in which a thread groove is formed in an outer peripheral face thereof, that includes a small-diameter portion with a diameter smaller than an outer diameter of the screw shaft formed integrally at one end of the screw shaft; a nut, through which the screw shaft passes, having a thread groove formed in an inner peripheral face thereof; a plurality of balls disposed in a ball passage formed by the thread groove of the screw shaft and the thread groove of the nut; and a ring-shaped stopper, immovably fitted on the small-diameter portion, that prevents the nut from moving.Type: GrantFiled: December 23, 2008Date of Patent: October 23, 2012Assignee: Jtekt CorporationInventors: Yoshifumi Shige, Katsura Koyagi, Atsushi Sakuta
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Publication number: 20120252590Abstract: In a rotary damper including a shaft, a pair of side panels which pivotally support the shaft while allowing the shaft to rotate in the circumferential direction, a case which is held between the side panels and forms a pressure chamber therein, a vane which is provided in the shaft, has a distal end in sliding contact with the inner periphery of the case and divides the pressure chamber into a first chamber and a second chamber, and a side plate which is interposed between the vane and at least one of the side panels and are more excellent in abrasion resistance than the side panels.Type: ApplicationFiled: March 14, 2012Publication date: October 4, 2012Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Kazuhiko YONEZAWA, Mitsuhiko HIROSE, Atsushi SAKUTA
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Publication number: 20120152053Abstract: A pedal device is provided with an accelerator pedal pivotally mounted in a vehicle; and a damper disposed between the accelerator pedal and the vehicle. The depressing force as a depression degree of the accelerator pedal is deter mined by the damper according to the movement of the accelerator pedal. Thus, the pedal device does not use friction members which create abrasion and the function thereof is not impaired even if exchange and maintenance are not carried out over a long period of time. Therefore, maintenance frequency and cost of the pedal device can be reduced.Type: ApplicationFiled: August 23, 2010Publication date: June 21, 2012Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Takuhiro Kondo, Koji Otake, Kazutaka Inamitsu, Yusuke Matsushita, Ikuhito Ishizue, Yasuhiro Ota, Atsushi Sakuta, Toshihiro Mori
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Patent number: 7905157Abstract: A housing has a screw shaft passing wall in which a through hole, through which a screw shaft passes, is formed. A spline outer cylinder is held at one end by the screw shaft passing wall, and a disc spring that biases the spline outer cylinder toward the screw shaft passing wall is arranged at the other end of the spline outer cylinder. A tapered recess is formed in one end face of the spline outer cylinder, and a tapered projection that is fitted in the tapered recess is formed in a face of the screw shaft passing wall of the housing, which faces the spline outer cylinder.Type: GrantFiled: January 14, 2009Date of Patent: March 15, 2011Assignee: JTEKT CorporationInventors: Yoshifumi Shige, Yasushi Kadota, Satoshi Kondo, Atsushi Sakuta
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Publication number: 20090321201Abstract: According to problem solving means of the present invention, in a suspension device (S) comprising a motion transforming mechanism (T) for transforming a linear motion of a linear motion member (1) into a rotational motion of a rotating member (2) and a motor (M) connected to the rotating member (2) in the motion transforming mechanism (T), an air spring (AS) is provided, the air spring (AS) including a tubular air chamber (22) connected to the motor (M), an air piston (37) connected to the linear motion member (1) and being tubular and smaller in diameter than the air chamber (22), and a diaphragm (27) interposed between the air chamber (22) and the air piston (37), a stopper (38a) is provided on an outer periphery of the air piston (37), and a stopper seat (46) is provided on an inner periphery of the air chamber (22) so as to be put in abutment against the stopper (38a) upon maximum extension of the suspension device involving relative separation of the air chamber (22) and the air piston (37) with respectType: ApplicationFiled: June 18, 2009Publication date: December 31, 2009Inventors: Atsushi SAKUTA, Takuhiro KONDO, Takayuki TACHI