Patents by Inventor Akio Shimamura
Akio Shimamura 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: 9243679Abstract: The present invention is an anti-vibration device (1) that includes: a first mounting component (2) that is cylindrically-shaped and joined to one of a vibration generating portion and a vibration receiving portion; a second mounting component (3) that is joined to the other one of the vibration generating portion and the vibration receiving portion; a first elastic body (4) that elastically joins the first mounting component (2) and the second mounting component (3) together; a fluid chamber (5) that is provided inside the first mounting component (2) and inside which a fluid is sealed; a first partitioning wall (10) that divides the fluid chamber (5) in an axial direction so as to define a main fluid chamber (8), a portion of wall surfaces of which is the first elastic body, and an auxiliary fluid chamber; a second partitioning wall (12) that divides the main fluid chamber (8) in a circumferential direction so as to define a plurality of divided main fluid chambers (11); and a plurality of restricting passaType: GrantFiled: September 21, 2011Date of Patent: January 26, 2016Assignee: BRIDGESTONE CORPORATIONInventor: Akio Shimamura
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Patent number: 8960654Abstract: Provided is a vibration isolation device including: a first attachment member formed in a tubular shape; a second attachment member disposed at the inner peripheral side of the first attachment member; a resilient body coupled to the first attachment member and the second attachment member; a partitioning member configuring a first main liquid chamber between the partitioning member and the resilient body; a diaphragm member configuring an auxiliary liquid chamber between the diaphragm member and the partitioning member; a first restricting through path enabling liquid to move between the first main liquid chamber and the auxiliary liquid chamber; a recess portion provided to the resilient body and configuring a liquid chamber between the recess portion and the first attachment member; a separating wall sectioning the liquid chamber into a plurality of second main liquid chambers; a second restricting through path; and pressure difference reduction portion.Type: GrantFiled: July 27, 2010Date of Patent: February 24, 2015Assignee: Bridgestone CorporationInventors: Hiroshi Kojima, Akio Shimamura
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Patent number: 8695954Abstract: A vibration absorption that is both capable of damping vibrations in two directions and high in durability. A pair of pressure receiving chambers (102A) and (102B) at symmetrical positions sandwiching an axis S are structured between a first rubber elastic body (24) and a second rubber elastic body (38). The shape of a first rubber elastic body (18) in an unloaded state is determined such that a region between an inner side joining portion (24B) and an outer side joining portion (24A) becomes substantially horizontal in a loaded state in which the first rubber elastic body (24) supports the weight of an engine.Type: GrantFiled: April 27, 2010Date of Patent: April 15, 2014Assignee: Bridgestone CorporationInventors: Kazuya Ogawa, Michihiro Orikawa, Akio Shimamura, Hiroshi Kojima
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Publication number: 20130187318Abstract: The present invention is an anti-vibration device (1) that includes: a first mounting component (2) that is cylindrically-shaped and joined to one of a vibration generating portion and a vibration receiving portion; a second mounting component (3) that is joined to the other one of the vibration generating portion and the vibration receiving portion; a first elastic body (4) that elastically joins the first mounting component (2) and the second mounting component (3) together; a fluid chamber (5) that is provided inside the first mounting component (2) and inside which a fluid is sealed; a first partitioning wall (10) that divides the fluid chamber (5) in an axial direction so as to define a main fluid chamber (8), a portion of wall surfaces of which is the first elastic body, and an auxiliary fluid chamber; a second partitioning wall (12) that divides the main fluid chamber (8) in a circumferential direction so as to define a plurality of divided main fluid chambers (11); and a plurality of restricting passaType: ApplicationFiled: September 21, 2011Publication date: July 25, 2013Applicant: BRIDGESTONE CORPORATIONInventor: Akio Shimamura
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Publication number: 20120126090Abstract: A thinned thickness portion 54 is formed to each of separating walls 42 that configure two second main liquid chambers 40 along an axis-orthogonal direction. The thinned thickness portions 54 extend from the thickness direction center of the separating walls 42 to the first main liquid chamber 28, such that the two sides of the thinned thickness portions are configured by thin walled portions 42U. The kinetic spring constants of the vibration isolation device are lowered in both the axial direction and the axis-orthogonal direction due to “pressure release” occurring.Type: ApplicationFiled: July 27, 2010Publication date: May 24, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Hiroshi Kojima, Akio Shimamura
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Publication number: 20120091640Abstract: A vibration absorption that is both capable of damping vibrations in two directions and high in durability. A pair of pressure receiving chambers (102A) and (102B) at symmetrical positions sandwiching an axis S are structured between a first rubber elastic body (24) and a second rubber elastic body (38). The shape of a first rubber elastic body (18) in an unloaded state is determined such that a region between an inner side joining portion (24B) and an outer side joining portion (24A) becomes substantially horizontal in a loaded state in which the first rubber elastic body (24) supports the weight of an engine.Type: ApplicationFiled: April 27, 2010Publication date: April 19, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Kazuya Ogawa, Michihiro Orikawa, Akio Shimamura, Hiroshi Kojima
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Publication number: 20050106700Abstract: A method of purifying a recombinant fused protein characterized in that a recombinant fused protein, wherein a target protein has been fused with dockerin by genetic engineering techniques, is treated with a support having a cohesin domain immobilized thereon; and a method of producing a target protein characterized by comprising obtaining a recombinant fused protein having the target protein bound to dockerin with the use of an expression vector having a gene encoding the target protein and the dockerin inserted thereinto, subsequently purifying the recombinant fused protein by binding to a support having a cohesin domain immobilized thereon, and then eliminating the dockerin from the recombinant fused protein are disclosed. Using these methods, it becomes possible to provide an affinity purification technique with the use of specific binding whereby a high affinity and easy dissociation can be established without causing insolubilization or inactivation.Type: ApplicationFiled: October 11, 2002Publication date: May 19, 2005Inventors: Tsuyoshi Nomura, Hidekazu Nagaya, Akio Shimamura, Shinichi Naya, Toshimichi Kanaya, Kazuo Sakka, Kunio Ohmiya