Patents by Inventor Hideki Maehashi
Hideki Maehashi 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: 8857800Abstract: A tank rubber cushion for providing a vibration-damping support of a fuel tank against a vehicle body, including two divided rubber cylinders inserted onto an inner axial member having flanges at both axial ends and to be inserted through a mounting hole formed in a support portion of the fuel tank. Each of the divided rubber cylinders is provided with an axial vibration-damping rubber portion arranged between opposing surfaces of the flange of the inner axial member and the support portion in an axial direction, and a transaxial vibration-damping rubber portion arranged between opposing surfaces of the inner axial member and the support portion in a transaxial direction. The transaxial vibration-damping rubber portion includes a concave/convex portion wherein a diameter varies in a circumferential direction so that an assembly can be made with a gap between the inner axial member and the support portion.Type: GrantFiled: September 7, 2012Date of Patent: October 14, 2014Assignees: Tokai Rubber Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Yuya Kawachi, Hideki Maehashi, Takashi Furusawa, Jun Kobayashi
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Publication number: 20120326369Abstract: A tank rubber cushion for providing a vibration-damping support of a fuel tank against a vehicle body, including two divided rubber cylinders inserted onto an inner axial member having flanges at both axial ends and to be inserted through a mounting hole formed in a support portion of the fuel tank. Each of the divided rubber cylinders is provided with an axial vibration-damping rubber portion arranged between opposing surfaces of the flange of the inner axial member and the support portion in an axial direction, and a transaxial vibration-damping rubber portion arranged between opposing surfaces of the inner axial member and the support portion in a transaxial direction. The transaxial vibration-damping rubber portion includes a concave/convex portion wherein a diameter varies in a circumferential direction so that an assembly can be made with a gap between the inner axial member and the support portion.Type: ApplicationFiled: September 7, 2012Publication date: December 27, 2012Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOKAI RUBBER INDUSTRIES, LTD.Inventors: Yuya KAWACHI, Hideki MAEHASHI, Takashi FURUSAWA, Jun KOBAYASHI
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Patent number: 6971639Abstract: An orifice device is adapted to be disposed within a fluid chambers of a vibration absorption device. The fluid chamber is defined by at least a wall portion made of resilient material. The orifice device includes an orifice casing, a retaining cover and a membrane that is made of resilient material, such as rubber. The membrane is adapted to be clamped between the orifice casing and the retaining cover. A lock mechanism serves to lock the orifice casing and the retaining cover together when the orifice casing and the retaining cover rotate relative to each other about an axis while the orifice casing and the retaining cover are overlapped with each other.Type: GrantFiled: October 27, 2003Date of Patent: December 6, 2005Assignees: Kabushiki Kaisha Togo Seisakusho, Tokai Rubber Industries, Ltd.Inventors: Hiroki Okada, Yasunori Makiuchi, Takanobu Nanno, Hideki Maehashi, Akio Saiki
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Patent number: 6773001Abstract: A rear engine mount includes a rectangular upper metal plate member, a metal stopper member, and a lower metal plate member. The metal stopper member includes a pair of side plates, and a bottom plate. The lower metal plate member is disposed a predetermined distance away from the upper metal plate member in a facing condition, with the metal stopper member disposed therebetween, and includes a pair of retaining portions provided at opposite end positions. A second stopper portion includes a pair of vertical plate portions standing on the lower metal plate member, and a horizontal plate member which is attached to the ends of the vertical plate portions and extended over the bottom plate of the metal stopper member. A pair of elastic rubber support members is bonded to the lower surface of the upper metal plate member at opposite end portions.Type: GrantFiled: March 25, 2003Date of Patent: August 10, 2004Assignee: Tokai Rubber Industries, Ltd.Inventors: Akio Saiki, Hideki Maehashi, Mitsuhiro Takayanagi, Takanobu Nanno
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Patent number: 6755401Abstract: A fluid-filled vibration-damping device includes an elastic body elastically connecting a first and a second mounting member so as to close one open-end portion of the second mounting member, and a partition member assembled with the second mounting member on one side thereof to form therebetween a pressure-receiving chamber partially defined by the elastic body and assembled with a fixing member on the other side thereof to form an equilibrium chamber partially defined by a flexible layer supported by one pen-end portion of the fixing member. The partition member includes a first and second fixing grooves axially spaced apart from each other with an intermediate portion therebetween, to which the other open-end portions of the second mounting and fixing members are respectively press-fitted, and an air passage for connecting a working air chamber to an external air conduit is open in the intermediate portion.Type: GrantFiled: July 15, 2002Date of Patent: June 29, 2004Assignee: Tokai Rubber Industries, Ltd.Inventors: Shouji Akasa, Katsuhiko Katagiri, Yuichi Ogawa, Hideki Maehashi, Akio Saiki
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Publication number: 20040084819Abstract: An orifice device is adapted to be disposed within a fluid chambers of a vibration absorption device. The fluid chamber is defined by at least a wall portion made of resilient material. The orifice device includes an orifice casing, a retaining cover and a membrane that is made of resilient material, such as rubber. The membrane is adapted to be clamped between the orifice casing and the retaining cover. A lock mechanism serves to lock the orifice casing and the retaining cover together when the orifice casing and the retaining cover rotate relative to each other about an axis while the orifice casing and the retaining cover are overlapped with each other.Type: ApplicationFiled: October 27, 2003Publication date: May 6, 2004Applicants: KABUSHIKI KAISHA TOGO SEISAKUSHO, TOKAI RUBBER INDUSTRIES, INC.Inventors: Hiroki Okada, Yasunori Makiuchi, Takanobu Nanno, Hideki Maehashi, Akio Saiki
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Publication number: 20030183997Abstract: A rear engine mount includes a rectangular upper metal plate member, a metal stopper member, and a lower metal plate member. The metal stopper member includes a pair of side plates, and a bottom plate, which collectively form a shape resembling the letter U, and stands on the lower surface of the upper metal plate member at longitudinally opposite end portions. The lower metal plate member is disposed a predetermined distance away from the upper metal plate member in a facing condition, with the metal stopper member disposed therebetween, and includes a pair of retaining portions provided at opposite end positions located in opposition to the opposite end portions of the upper metal plate member. A second stopper portion includes a pair of vertical plate portions which stands on the lower metal plate member, and a horizontal plate member which is attached to the ends of the vertical plate portions and extends over the bottom plate of the metal stopper member, thereby surrounding the bottom plate.Type: ApplicationFiled: March 25, 2003Publication date: October 2, 2003Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Akio Saiki, Hideki Maehashi, Mitsuhiro Takayanagi, Takanobu Nanno
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Publication number: 20030011115Abstract: A fluid-filled vibration damping device includes an elastic body elastically connecting a first and a second mounting member so as to close one open-end portion of the second mounting member, and a partition member assembled with the second mounting member on one side thereof to form therebetween a pressure-receiving chamber partially defined by the elastic body and assembled with a fixing member on the other side thereof to form an equilibrium chamber partially defined by a flexible layer supported by the fixing member. The partition member includes a fixing groove to which open end peripheral portions of the cylindrical portion of the second mounting and the fixing sleeve portion of the fixing members are press-fitted, whereby the peripheral portion of the flexible layer is fixed to the partition member.Type: ApplicationFiled: July 15, 2002Publication date: January 16, 2003Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Shouji Akasa, Katsuhiko Katagiri, Yuichi Ogawa, Hideki Maehashi, Akio Saiki