Patents by Inventor Hiroshi Kojima
Hiroshi Kojima 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: 10502279Abstract: An anti-vibration device includes: a cylinder body coupled to a vibration receiver; a support body coupled to a vibration source; an elastic body that attaches the support body to the cylinder body such that the support body is capable of moving relative to the cylinder body; a first liquid chamber sectioned by an orifice pathway and the elastic body; a second liquid chamber that a liquid flows to and from the first liquid chamber through the orifice pathway; a first gas chamber with a wall configured by a diaphragm; a second gas chamber capable of communicating with the first gas chamber; and a switching section that switches a state of communication of the first gas chamber and the second gas chamber.Type: GrantFiled: August 3, 2016Date of Patent: December 10, 2019Assignee: BRIDGESTONE CORPORATIONInventor: Hiroshi Kojima
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Patent number: 10487903Abstract: Provided is a method for manufacturing a vibration damping device including sealing liquid (L) in a liquid chamber (11) of a vibration damping device main body (10) having the liquid chamber (11) in which the liquid (L) is sealed, and an injection port (12) through which the liquid (L) is injected into the liquid chamber (11). In a state where a nozzle (22) spouting the liquid (L) is thrust into the injection port (12) and an inside of a decompression container (21) having the vibration damping device main body (10) disposed therein is decompressed, the liquid (L) is injected into the liquid chamber (11) through the nozzle (22), and air inside the liquid chamber (11) is discharged through an air discharge port (14) which is formed in the vibration damping device main body (10) and communicates with the liquid chamber (11).Type: GrantFiled: February 2, 2016Date of Patent: November 26, 2019Assignee: BRIDGESTONE CORPORATIONInventor: Hiroshi Kojima
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Publication number: 20190346009Abstract: A vibration damping device (1, 10, 100) includes a tubular metal bracket (20, 120), a first attachment member (12, 112), a second attachment member (11, 23, 111), an elastic body (13, 113), a partition member (17, 117), and a diaphragm (19, 119). A fixed portion (11g, 23c, 111c) fixed to a fixing portion (20b, 120b) of the metal bracket is formed in the second attachment member. A gap (S2, S21) is provided between a portion of an outer circumferential surface of the second attachment member except for the fixed portion, and a portion of an inner circumferential surface of the metal bracket except for the fixing portion, and a second seal portion (22, 123) is provided between the fixed portion and the fixing portion.Type: ApplicationFiled: September 26, 2017Publication date: November 14, 2019Applicant: BRIDGESTONE CORPORATIONInventor: Hiroshi KOJIMA
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Publication number: 20190287729Abstract: An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a conductive polymer, a polyanion, and an alkali component. The alkali component includes two or more kinds of alkali compound.Type: ApplicationFiled: June 3, 2019Publication date: September 19, 2019Inventors: HITOSHI FUKUI, HIROSHI KOJIMA
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Publication number: 20190283694Abstract: An electrical apparatus includes a circuit structure, a case provided with a bottom panel and a case peripheral wall, and a cover provided with a cover panel and a cover peripheral wall. At least a part of an inner surface of the cover peripheral wall and an outer surface of the case peripheral wall face one another, thereby forming a housing space and housing the circuit structure within the housing space. A groove is formed in at least one of (i) the entire periphery of the outer surface of the case peripheral wall or (ii) the entire periphery of the inner surface of the cover peripheral wall. This configuration provides a structure that suppresses infiltration of liquid to the inside of the case, and suppresses adhesion of liquid to the circuit structure.Type: ApplicationFiled: July 18, 2017Publication date: September 19, 2019Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Satoru CHAEN, Keiichi OGAWA, Hiroshi KOJIMA
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Publication number: 20190264768Abstract: An anti-vibration device comprises: a first attachment member configured to be connected to one of a vibration generating portion and a vibration receiving portion; a second attachment member configured to be connected to an other one of the vibration generating portion and the vibration receiving portion; and an elastic body located between the first attachment member and the second attachment member, wherein the first attachment member has a first recess in which one end portion of the elastic body is housed, the second attachment member has a second recess in which an other end portion of the elastic body is housed, and a concavity portion forming a space with the elastic body is formed in at least one of the first recess and the second recess.Type: ApplicationFiled: June 23, 2017Publication date: August 29, 2019Applicant: BRIDGESTONE CORPORATIONInventor: Hiroshi KOJIMA
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Patent number: 10388463Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a conductive polymer layer covering at least a part of the dielectric layer. The conductive polymer layer includes a conductive polymer and a polymer dopant. The polymer dopant includes a first copolymer including: (A) a first unit derived from a first monomer having a sulfonate group; (B) a second unit derived from a second monomer having a carboxy group; and (C) a third unit derived from a third monomer having a hydroxy group.Type: GrantFiled: November 14, 2017Date of Patent: August 20, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Youichirou Uka, Katsuya Miyahara, Hiroshi Kojima
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Publication number: 20190239378Abstract: A circuit board fixation structure includes a screw, an inner tubular section having a threaded hole into which the screw is threaded, and an outer tubular section. The outer tubular section includes an abutted section the head of the screw, and a pressing section. A large-diameter section is fixed relative to an outer peripheral surface of the inner tubular section, and has a diameter dimension is greater than an outer dimension of the inner tubular section. A circuit board is provided with a through hole with an inner diameter dimension that is greater than an outer dimension of the inner tubular section and smaller than the outer dimension of the large-diameter section. The circuit board is interposed between the pressing section of the outer tubular section and the large-diameter section in a state in which the inner tubular section is inserted through the through hole.Type: ApplicationFiled: July 18, 2017Publication date: August 1, 2019Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Satoru CHAEN, Keiichi OGAWA, Hiroshi KOJIMA
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Patent number: 10366841Abstract: A conductive polymer layer of a electrolytic capacitor includes a conductive polymer and a polymer dopant. The polymer dopant includes; (A) a first unit originating from a first monomer having a polymerizable group and a sulfonate group; and (B) a second unit originating from a second monomer having a polymerizable group and a phosphorus-containing group. The phosphorus-containing group is represented by at least one of general formula (1); —P(?O)(OR1)(OR2), general formula (2); —PH(?O)(OR3), and general formula (3); —PH2(?O). In the general formulae (1) to (3), each of R1, R2 and R3 is independently a hydrogen atom, a hydrophilic group, a C1 to C3 alkyl group, or a cationic group.Type: GrantFiled: December 12, 2016Date of Patent: July 30, 2019Assignee: Panasonic CorporationInventors: Youichirou Uka, Shintaro Tanimoto, Hiroshi Kojima
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Publication number: 20190226549Abstract: An anti-vibration device (1) of the present invention includes a cylindrical first attaching member (11) and a second attaching member (12), an elastic body (13), and a partition member (17) which is configured to partition a liquid chamber (14) in the first attaching member into a main liquid chamber (15) and an auxiliary liquid chamber (16). The partition member includes a membrane (31) that forms a part of the partition wall of the main liquid chamber, and an intermediate chamber (35) which is located on a side opposite to the main liquid chamber with the membrane therebetween and has a membrane as a part of a partition wall of the main liquid chamber.Type: ApplicationFiled: July 13, 2017Publication date: July 25, 2019Applicant: BRIDGESTONE CORPORATIONInventor: Hiroshi KOJIMA
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Patent number: 10340090Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer formed on the anode body; a first conductive polymer layer covering at least a part of the dielectric layer; a second conductive polymer layer covering at least a part of the first conductive polymer layer; and an intermediate layer formed between the first conductive polymer layer and second conductive polymer layer. The intermediate layer includes a cation agent containing a cationic group, and an anion agent containing a first anionic group and a second anionic group. The first anionic group is higher in electron-withdrawing property than the second anionic group. In the intermediate layer, a total of a number of the first anionic group and a number of the second anionic group is larger than a number of the cationic group.Type: GrantFiled: December 9, 2016Date of Patent: July 2, 2019Assignee: PANASONIC CORPORATIONInventors: Youichirou Uka, Shintaro Tanimoto, Hiroshi Kojima
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Patent number: 10337585Abstract: The vibration isolation device (10) includes a first mounting member (11) connected to one of a vibration generating portion and a vibration receiving portion, and a second mounting member (12) connected to the other thereof; and an elastic body (13) disposed between the mounting members. On either one of opposing surfaces (24, 25) that oppose each other, respectively on the first mounting member (11) and the second mounting member (12), a stopper elastic body (27) having a stopper surface (26) which faces the other of the opposing surfaces (24, 25) such as to be capable of coming into contact therewith, and a hollow portion (30) in which the stopper elastic body (27) is disposed, are provided. The stopper elastic body (27) is fitted into the hollow portion (30) such that, among the surfaces of the stopper elastic body (27), a counter-stopper surface (34) which faces the direction opposed to the stopper surface (26), is in a state of non-contact.Type: GrantFiled: August 28, 2015Date of Patent: July 2, 2019Assignee: BRIDGESTONE CORPORATIONInventor: Hiroshi Kojima
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Patent number: 10325728Abstract: An electrolytic capacitor includes an anode body having a dielectric layer, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer and a first polymer dopant having a sulfonate group. The second conductive polymer layer includes a second conductive polymer and a second polymer dopant having a sulfonate group. A polymerization degree of the first conductive polymer is lower than a polymerization degree of the second conductive polymer.Type: GrantFiled: October 23, 2017Date of Patent: June 18, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Youichirou Uka, Katsuya Miyahara, Hiroshi Kojima
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Patent number: 10304634Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer. The second conductive polymer layer includes a second conductive polymer. The first conductive polymer layer and the second conductive polymer layer each further include a first polymer dopant having a sulfonation degree of S1. At least one of the first conductive polymer layer and the second conductive polymer layer further includes a second polymer dopant having a sulfonation degree of S2. The sulfonation degree of S1 and the sulfonation degree of S2 satisfy a relation of S1<S2.Type: GrantFiled: October 23, 2017Date of Patent: May 28, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Youichirou Uka, Katsuya Miyahara, Hiroshi Kojima
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Publication number: 20190093840Abstract: An object is to provide a daylighting sheet which efficiently performs daylighting and in which, when the daylighting sheet is applied to a window of a building or the like, it is possible to see an outdoor side. The daylighting sheet includes a translucent base material layer; and a light deflection layer that is formed on the base material layer, and the light deflection layer includes: light transmission portions that are aligned along one surface of the base material layer so as to be able to transmit light, each of which including a groove at a portion being in a light entering side in a position where the light transmission portion is arranged in the opening portion of a building; and light deflection portions that are formed between the light transmission portions and filled with a material whose refractive index is lower than that of the light transmission portions.Type: ApplicationFiled: September 10, 2018Publication date: March 28, 2019Inventors: Tsuyoshi KASHIWAGI, Kazunobu OGAWA, Hideki MIYATA, Tatsuaki INOUE, Hiroshi KOJIMA
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Patent number: 10119593Abstract: A vibration isolation device (10) includes a first mounting member (11) connected to one of a vibration generating portion and a vibration receiving portion, and a second mounting member (12) connected to the other; an elastic body (13) disposed between the mounting members (11, 12); a first stopper elastic body (27) having a first stopper surface (26) which is disposed on either one of opposing surfaces (24, 25) that oppose each other, respectively on the first mounting member (11) and the second mounting member (12), and which faces the other surface such as to be capable of coming into contact therewith; and a second stopper elastic body (29) having a second stopper surface (28) which is disposed on either one of the opposing surfaces (24, 25), respectively on the first mounting member (11) and the second mounting member (12), and which faces the other surface such as to be capable of coming into contact therewith.Type: GrantFiled: August 31, 2015Date of Patent: November 6, 2018Assignee: BRIDGESTONE CORPORATIONInventor: Hiroshi Kojima
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Patent number: 10107354Abstract: A liquid-filled bushing (1) includes an inner tube (11) and an outer member (12). The outer member (12) defines a pair of liquid chambers between the outer member (12) and the inner tube (11), and an orifice portion (13) in which an orifice passage (24) which communicates with the liquid chambers is formed. An elastic body (14) which elastically connects together the orifice portion (13) and the inner tube (11) is provided. The pair of liquid chambers are individually disposed on both sides between which the inner tube (11) is interposed. A first protrusion portion (11a) which protrudes outward in the radial direction and is fitted into the elastic body is formed in the inner tube (11), and a second protrusion portion (28) which protrudes inward in the radial direction and is fitted into the elastic body (14) is formed in the orifice portion (13).Type: GrantFiled: August 6, 2015Date of Patent: October 23, 2018Assignee: BRIDGESTONE CORPORATIONInventors: Hiroshi Kojima, Toru Ebara
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Patent number: 10100992Abstract: An object is to provide a daylighting sheet which efficiently performs daylighting and in which, when the daylighting sheet is applied to a window of a building or the like, it is possible to see an outdoor side. The daylighting sheet includes a translucent base material layer; and a light deflection layer that is formed on the base material layer, and the light deflection layer includes: light transmission portions that are aligned along one surface of the base material layer so as to be able to transmit light, each of the light transmission portions including a portion that is convex upwards; and light deflection portions that are formed between the light transmission portions and filled with a material whose refractive index is lower than that of the light transmission portions.Type: GrantFiled: June 15, 2017Date of Patent: October 16, 2018Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tsuyoshi Kashiwagi, Kazunobu Ogawa, Hideki Miyata, Tatsuaki Inoue, Hiroshi Kojima
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Publication number: 20180238414Abstract: An anti-vibration device includes: a cylinder body coupled to a vibration receiver; a support body coupled to a vibration source; an elastic body that attaches the support body to the cylinder body such that the support body is capable of moving relative to the cylinder body; a first liquid chamber sectioned by an orifice pathway and the elastic body; a second liquid chamber that a liquid flows to and from the first liquid chamber through the orifice pathway; a first gas chamber with a wall configured by a diaphragm; a second gas chamber capable of communicating with the first gas chamber; and a switching section that switches a state of communication of the first gas chamber and the second gas chamber.Type: ApplicationFiled: August 3, 2016Publication date: August 23, 2018Inventor: Hiroshi KOJIMA
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Publication number: 20180223946Abstract: A vibration damping device (10) comprises a tubular outer attachment member (11) and an inner attachment member (12); a pair of main rubber portions (13) that couple the outer attachment member (11) to the inner attachment member (12), and that are arranged so as to be spaced in an axial direction along a central axis (O) of the outer attachment member (11); and a partition portion (15) that couples the outer attachment member (11) to the inner attachment member (12), and that partitions a liquid chamber (25) between the pair of main rubber portions (13), in the axial direction, into a first liquid chamber (26) and a second liquid chamber (27). The partition portion (15) comprises an annular rigid portion (30) in which a restricted passage (33) that connects the first liquid chamber (26) to the second liquid chamber (27) is formed, and an annular elastic portion (29) that is adjacent to the rigid portion (31) in the radial direction.Type: ApplicationFiled: August 3, 2016Publication date: August 9, 2018Applicant: BRIDGESTONE CORPORATIONInventor: Hiroshi KOJIMA