Patents by Inventor Yoshiteru Igarashi
Yoshiteru Igarashi 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: 11313412Abstract: Provided is a slide bearing capable of retaining strength while achieving weight reduction and cost-cutting. The slide bearing has an upper case (2) to be attached to an upper support for attaching a suspension to a vehicle body, a lower case (3) rotatably combined with the upper case (2), an annular center plate (4) located between the upper case (2) and the lower case (3), and an annular sliding sheet (5) located between the upper case (2) and the center plate (4). The lower case (3) has a lower case body (31) in a substantial cylindrical shape, a flange part (32) projecting radially outward from an outer peripheral surface of the lower case body (31), and hollow sections (321) formed on an outer peripheral surface of the flange part (32). A plurality of the hollow sections (321) are formed at equal intervals in a circumferential direction on the outer peripheral surface of the flange part (32).Type: GrantFiled: August 30, 2018Date of Patent: April 26, 2022Assignee: OILES CORPORATIONInventors: Tomohiro Yamada, Yoshiteru Igarashi, Kouichi Morishige
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Publication number: 20200284294Abstract: Provided is a slide bearing capable of retaining strength while achieving weight reduction and cost-cutting. The slide bearing has an upper case (2) to be attached to an upper support for attaching a suspension to a vehicle body, a lower case (3) rotatably combined with the upper case (2), an annular center plate (4) located between the upper case (2) and the lower case (3), and an annular sliding sheet (5) located between the upper case (2) and the center plate (4). The lower case (3) has a lower case body (31) in a substantial cylindrical shape, a flange part (32) projecting radially outward from an outer peripheral surface of the lower case body (31), and hollow sections (321) formed on an outer peripheral surface of the flange part (32). A plurality of the hollow sections (321) are formed at equal intervals in a circumferential direction on the outer peripheral surface of the flange part (32).Type: ApplicationFiled: August 30, 2018Publication date: September 10, 2020Inventors: Tomohiro YAMADA, Yoshiteru IGARASHI, Kouichi MORISHIGE
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Publication number: 20200171905Abstract: The purpose of the present invention is to improve the driving stability of a vehicle in which a double wishbone type or multi-link type suspension is adopted. A double wishbone type suspension has a sliding bearing disposed between a coil spring provided coaxially with a shock absorber and an upper support for mounting the coil spring to the body of the vehicle along with the shock absorber, the sliding bearing permitting the coil spring and the upper support to rotate relative to each other. The sliding bearing permits the coil spring and the upper support to rotate relative to each other with torque lower than torque generated by the torsion of the coil spring caused by the load of the vehicle acting on a damper assembly.Type: ApplicationFiled: August 2, 2018Publication date: June 4, 2020Inventors: Yoshiteru IGARASHI, Kouichi MORISHIGE, Tsuyoshi NAGASHIMA
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Patent number: 9707816Abstract: A synthetic resin-made sliding bearing includes a synthetic resin-made upper casing which is fixed to a vehicle body side through a mounting member; a synthetic resin-made lower casing which is superposed on the upper casing so as to be rotatable about an axis in a circumferential direction relative to the upper casing; and a synthetic resin-made sliding bearing piece disposed in a space between the upper casing and the lower casing.Type: GrantFiled: November 29, 2016Date of Patent: July 18, 2017Assignees: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu Sakairi, Katsunori Saito, Robert Hamrodi, Kai Metzler, Yoshiteru Igarashi
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Patent number: 9623714Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a mounting member on a vehicle body side; a reinforced synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; a metallic reinforcing member 4; and a synthetic resin-made sliding bearing piece 5 disposed in a space S between the upper casing 2 and the lower casing 3.Type: GrantFiled: January 27, 2014Date of Patent: April 18, 2017Assignees: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu Sakairi, Katsunori Saito, Robert Hamrodi, Kai Metzler, Yoshiteru Igarashi
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Publication number: 20170072759Abstract: A synthetic resin-made sliding bearing includes a synthetic resin-made upper casing which is fixed to a vehicle body side through a mounting member; a synthetic resin-made lower casing which is superposed on the upper casing so as to be rotatable about an axis in a circumferential direction relative to the upper casing; and a synthetic resin-made sliding bearing piece disposed in a space between the upper casing and the lower casing.Type: ApplicationFiled: November 29, 2016Publication date: March 16, 2017Inventors: Yoshikazu SAKAIRI, Katsunori SAITO, Robert HAMRODI, Kai METZLER, Yoshiteru IGARASHI
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Patent number: 9556906Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a mounting member on a vehicle body side through a mounting member; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: GrantFiled: February 5, 2014Date of Patent: January 31, 2017Assignees: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu Sakairi, Katsunori Saito, Robert Hamrodi, Kai Metzler, Yoshiteru Igarashi
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Patent number: 9539874Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a vehicle body side through a mounting member; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: GrantFiled: February 4, 2014Date of Patent: January 10, 2017Assignees: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu Sakairi, Katsunori Saito, Robert Hamrodi, Kai Metzler, Yoshiteru Igarashi
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Patent number: 9415656Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a vehicle body side through a mounting member; a reinforced synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: GrantFiled: March 5, 2014Date of Patent: August 16, 2016Assignee: Oiles CorporationInventors: Yoshikazu Sakairi, Katsunori Saito, Robert Hamrodi, Kai Metzler, Yoshiteru Igarashi
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Patent number: 9315127Abstract: A damper includes a vessel for accommodating a viscous fluid in its interior; hampering walls for hampering the flow of the viscous fluid; a partitioning member which partitions each of interior portions into two chambers and is provided rotatably; a communicating hole formed in the partitioning member so as to allow the two chambers to communicate with each other via a variable passage whose passage cross-sectional area changes; a flow limiter to limit the flow of the viscous fluid in the chamber into the chamber through the communicating hole, when the internal pressure of the viscous fluid accommodated in the chamber has exceeded a fixed value on the basis of the rotation of the partitioning member; and a resilient structure to resiliently urge the partitioning member in a direction with respect to the vessel.Type: GrantFiled: May 28, 2014Date of Patent: April 19, 2016Assignee: Oiles CorporationInventors: Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
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Publication number: 20160082800Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a vehicle body side through a mounting member; a reinforced synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: ApplicationFiled: March 5, 2014Publication date: March 24, 2016Applicants: Oiles Corporation, Oiles Deutschland GMBHInventors: Yoshikazu SAKAIRI, Katsunori SAITO, Robert HAMRODI, Kai METZLER, Yoshiteru IGARASHI
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Publication number: 20150377286Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a mounting member on a vehicle body side through a mounting member; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: ApplicationFiled: February 5, 2014Publication date: December 31, 2015Applicants: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu SAKAIRI, Katsunori SAITO, Robert HAMRODI, Kai METZLER, Yoshiteru IGARASHI
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Publication number: 20150375591Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a vehicle body side through a mounting member; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; and a synthetic resin-made sliding bearing piece 5 disposed in a space 4 between the upper casing 2 and the lower casing 3.Type: ApplicationFiled: February 4, 2014Publication date: December 31, 2015Inventors: Yoshikazu SAKAIRI, Katsunori SAITO, Robert HAMRODI, Kai METZLER, Yoshiteru IGARASHI
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Publication number: 20150354629Abstract: A synthetic resin-made sliding bearing 1 includes a synthetic resin-made upper casing 2 which is fixed to a mounting member on a vehicle body side; a reinforced synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; a metallic reinforcing member 4; and a synthetic resin-made sliding bearing piece 5 disposed in a space S between the upper casing 2 and the lower casing 3.Type: ApplicationFiled: January 27, 2014Publication date: December 10, 2015Applicants: OILES CORPORATION, OILES DEUTSCHLAND GMBHInventors: Yoshikazu SAKAIRI, Katsunori SAITO, Robert HAMRODI, Kai METZLER, Yoshiteru IGARASHI
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Patent number: 9163692Abstract: A rotary damper 1 includes a synthetic resin-made accommodating case 4 for accommodating in its interior 2 a viscous fluid 3 which is constituted by silicone oil or the like and whose viscosity declines with a temperature rise, and a synthetic resin-made rotor 9 which is disposed in the interior 2 of the accommodating case 4 rotatably, i.e., so as to be rotatable in R1 and R2 directions about an axis O, and which partitions the interior 2 of the accommodating case 4 into at least two chambers, i.e., in this embodiment, two chambers consisting of chambers 5 and 6 and two chambers consisting of chambers 7 and 8, in cooperation with the accommodating case 4.Type: GrantFiled: September 16, 2013Date of Patent: October 20, 2015Assignee: Oiles CorporationInventors: Masamitsu Kojima, Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
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Patent number: 8869957Abstract: A damper 1 includes a vessel 4 for accommodating a viscous fluid 3 in its interior 2; hampering walls 5 and 6 for hampering the flow of the viscous fluid 3; a partitioning member 11 which partitions each of interior portions 7 and 8 into two chambers 9 and 10 and is provided rotatably; a communicating hole 13 formed in the partitioning member 11 so as to allow the two chambers 9 and 10 to communicate with each other via a variable passage 12 whose passage cross-sectional area changes; a flow limiting means 14 for limiting the flow of the viscous fluid 3 in the chamber 9 into the chamber 10 through the communicating hole 13, when the internal pressure of the viscous fluid 3 accommodated in the chamber 9 has exceeded a fixed value on the basis of the rotation of the partitioning member 11; and a resilient means 15 for resiliently urging the partitioning member 11 in an R2 direction with respect to the vessel 4.Type: GrantFiled: April 20, 2009Date of Patent: October 28, 2014Assignee: Oiles CorporationInventors: Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
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Publication number: 20140300151Abstract: A damper includes a vessel for accommodating a viscous fluid in its interior; hampering walls for hampering the flow of the viscous fluid; a partitioning member which partitions each of interior portions into two chambers and is provided rotatably; a communicating hole formed in the partitioning member so as to allow the two chambers to communicate with each other via a variable passage whose passage cross-sectional area changes; a flow limiter to limit the flow of the viscous fluid in the chamber into the chamber through the communicating hole, when the internal pressure of the viscous fluid accommodated in the chamber has exceeded a fixed value on the basis of the rotation of the partitioning member; and a resilient structure to resiliently urge the partitioning member in a direction with respect to the vessel.Type: ApplicationFiled: May 28, 2014Publication date: October 9, 2014Applicant: OILES CORPORATIONInventors: Akihiko OKIMURA, Yoshiteru IGARASHI, Naohiro HORITA
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Patent number: 8813899Abstract: A damper is provided which damps an applied external force in accordance with the strength of the external force (impact strength). The damper 10 comprises a vessel 20 having a cylindrical chamber 21 filled with a viscous fluid, a turn member 60 turned by the external force, a slider member 40 which is moved in the chamber 21 of the vessel 20 by turn of the turn member 60, partition member 80 engaged with the slider member 40, a coiled spring 100 for energizing the slider member 40 toward the turn member 60, and a resin cap 100 blocking an opening of the vessel 20.Type: GrantFiled: September 19, 2011Date of Patent: August 26, 2014Assignee: Oiles CorporationInventors: Yoshiteru Igarashi, Akihiko Okimura
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Patent number: 8757337Abstract: A rotary damper 1 includes a synthetic resin-made accommodating case 4 for accommodating in its interior 2 a viscous fluid 3 which is constituted by silicone oil or the like and whose viscosity declines with a temperature rise, and a synthetic resin-made rotor 9 which is disposed in the interior 2 of the accommodating case 4 rotatably, i.e., so as to be rotatable in R1 and R2 directions about an axis O, and which partitions the interior 2 of the accommodating case 4 into at least two chambers, i.e., in this embodiment, two chambers consisting of chambers 5 and 6 and two chambers consisting of chambers 7 and 8, in cooperation with the accommodating case 4.Type: GrantFiled: November 18, 2009Date of Patent: June 24, 2014Assignee: Oiles CorporationInventors: Masamitsu Kojima, Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
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Publication number: 20140014449Abstract: A rotary damper 1 includes a synthetic resin-made accommodating case 4 for accommodating in its interior 2 a viscous fluid 3 which is constituted by silicone oil or the like and whose viscosity declines with a temperature rise, and a synthetic resin-made rotor 9 which is disposed in the interior 2 of the accommodating case 4 rotatably, i.e., so as to be rotatable in R1 and R2 directions about an axis O, and which partitions the interior 2 of the accommodating case 4 into at least two chambers, i.e., in this embodiment, two chambers consisting of chambers 5 and 6 and two chambers consisting of chambers 7 and 8, in cooperation with the accommodating case 4.Type: ApplicationFiled: September 16, 2013Publication date: January 16, 2014Applicant: OILES CORPORATIONInventors: Masamitsu KOJIMA, Akihiko OKIMURA, Yoshiteru IGARASHI, Naohiro HORITA