Patents Assigned to Usui Kokusai Sangyo Kaisha Limited
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Patent number: 10408177Abstract: Provided is a steel fuel conveying pipe with high quality which has high resistance to corrosive fuel and followability, and allows working after plating. The steel fuel conveying pipe is characterized in that a Ni-plate layer is formed on an inner surface of a steel pipe of base material, the Ni-plated layer is wholly composed of a mutual diffusion layer including the base material and Ni and a non-mutual diffusion layer including only Ni formed on an outermost surface of the diffusion layer, a layer thickness of the non-mutual diffusion layer is 3 ?m or more, and a total layer thickness of the mutual diffusion layer and the non-mutual diffusion layer is 10 ?m or more and 25 ?m or less.Type: GrantFiled: September 2, 2014Date of Patent: September 10, 2019Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventor: Aki Katsumata
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Patent number: 10273919Abstract: Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, in which an end or both ends of a rail body composed of a pipe is/are closed by a thread fastening type of an end cap or end caps having a cap-nut shape, is characterized in that a metallic gasket is provided between an inner wall surface of the end cap having the cap-nut shape and an end section of the rail body, the end cap having the cap-nut shape is screwed and fixed to the rail body, and the gasket is tightened by an axial force created by tightening of the end cap having the cap-nut shape so that the end of the rail body is sealed.Type: GrantFiled: August 6, 2015Date of Patent: April 30, 2019Assignee: Usui Kokusai Sangyo Kaisha LimitedInventor: Daisuke Asahi
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Patent number: 10221902Abstract: A temperature-sensitive fluid fan clutch device includes an oil reservoir chamber in a case supported by a rotating shaft that has a drive disk fixed thereto. Plural dams are provided outward of the drive disk, and oil circulating flow passages contiguously to the dams extend between a torque transmission chamber and the oil reservoir chamber. A valve opens and closes an oil circulation flow hole of the oil reservoir chamber due to a change in temperature of a temperature-sensitive body. An oil effective contact area in a torque transmission gap between a drive side and a driven side is varied to control rotation torque transmission from the drive side to the driven side. An oil collection valve member independently opens and closes at least one of the oil circulating flow passages. The temperature-sensitive fluid fan clutch device inhibits a cold “drag” phenomenon and reduces fan power loss and fuel consumption.Type: GrantFiled: July 28, 2015Date of Patent: March 5, 2019Assignee: Usui Kokusai Sangyo Kaisha LimitedInventor: Satoshi Kubota
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Patent number: 10012192Abstract: Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, the end seal structure being characterized in that: a collar is joined by brazing to an outer circumference of an end of a pipe of the rail body including a pipe; the end cap having a cap-nut shape and including a sealing projection on an surface thereof facing the opening at the end of the pipe of the rail body, is screwed and fixed to the collar; and the sealing projection of the end cap brings into pressure contact with the end of the opening of the rail body by an axial force created by tightening of the end cap having the cap-nut shape to seal the end of the opening of the rail body.Type: GrantFiled: July 15, 2015Date of Patent: July 3, 2018Assignee: Usui Kokusai Sangyo Kaisha LimitedInventor: Shuji Suzuki
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Patent number: 9664163Abstract: Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D?D1?0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1?0.06D.Type: GrantFiled: January 15, 2016Date of Patent: May 30, 2017Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Iichiro Seino, Eiji Kurata
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Patent number: 9664239Abstract: Provided is a highly reactive fluid fan clutch device excellent in reaction speed of fan rotation to a control signal even with a weak centrifugal force during low fan rotation. The device of an external control type includes: an annular oil reserving chamber provided in a case that is supported by a rotary shaft having a drive disk fixed thereto; and a valve member for opening and closing an oil circulating flow passage hole of the annular oil reserving chamber by an electromagnet, wherein an effective oil contact area at a torque transmission gap formed between a drive side and a driven side is increased and decreased to control rotation torque transmission from the drive side to the driven side, and an inner wall eccentric to an outer wall of the annular oil reserving chamber is provided in the annular oil reserving chamber.Type: GrantFiled: April 15, 2015Date of Patent: May 30, 2017Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Satoshi Kubota, Yohei Takahashi
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Patent number: 9611972Abstract: Provided is a pipe having a heat-resistant and corrosion-resistant multi-layered plated layer excellent in workability. The pipe includes a multi-layered plated layer including: a ZnNi alloy plated layer that has a Ni content of 5% to 9% and a layer thickness of 3 ?m to 9 ?m and is formed as a first layer on a surface of a base steel pipe; another ZnNi alloy plated layer that has a Ni content of 10% to 15% and a layer thickness of 1 ?m to 3 ?m and is deposited as a second layer on the ZnNi alloy plated layer formed as the first layer; and a chromate film that is formed on the ZnNi alloy plated layer formed as the second layer.Type: GrantFiled: June 27, 2013Date of Patent: April 4, 2017Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventor: Yasushige Ishii
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Patent number: 9599080Abstract: Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine which can prevent stress concentration to a brazed portion between a pipe and a connection part effectively. In the terminal structure of a high-pressure fuel pipe for a direct injection engine where a connection head is brazed to an end of a fuel pipe, the end of the fuel pipe continued to a fuel pipe insertion portion of the connection head is provided with a drawn portion, an outer diameter D1 of the drawn portion to a fuel pipe diameter D satisfies 0.8D?D1?0.9D, and a length L1 of the drawn portion having the outer diameter D1 in a pipe-axial direction from an end of the fuel pipe insertion portion satisfies L1?0.06D.Type: GrantFiled: February 7, 2013Date of Patent: March 21, 2017Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Iichiro Seino, Eiji Kurata
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Publication number: 20160341163Abstract: Provided is a stainless steel automotive fuel pipe having a copper brazed part with excellent corrosion resistance. The fuel pipe is characterized in that a Cu—Ni brazing material containing 3 to 10% by weight of Ni is used as a copper brazing material for in-furnace brazing, and a nickel component of a diffusion layer positioned midway between a stainless-steel base material and the copper brazing material of a copper brazed part are in a state similar to that of the stainless-steel base material.Type: ApplicationFiled: February 6, 2015Publication date: November 24, 2016Applicant: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Motoharu Sugiyama, Iyoshi Watanabe, Kengo Murofushi
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Publication number: 20160230725Abstract: Provided is a steel fuel conveying pipe with high quality which has high resistance to corrosive fuel and followability, and allows working after plating. The steel fuel conveying pipe is characterized in that a Ni-plate layer is formed on an inner surface of a steel pipe of base material, the Ni-plated layer is wholly composed of a mutual diffusion layer including the base material and Ni and a non-mutual diffusion layer including only Ni formed on an outermost surface of the diffusion layer, a layer thickness of the non-mutual diffusion layer is 3 ?m or more, and a total layer thickness of the mutual diffusion layer and the non-mutual diffusion layer is 10 ?m or more and 25 ?m or less.Type: ApplicationFiled: September 2, 2014Publication date: August 11, 2016Applicant: USUI KOKUSAI SANGYO KAISHA LIMITEDInventor: Aki Katsumata
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Patent number: 9239086Abstract: An external control type fan clutch device has a sealed housing with a torque transmission chamber incorporating a drive disk therein. The drive disk has an oil reserving chamber. The sealed housing is supported on a rotary shaft with the drive disk fixed thereto. A valve member (armature) controls opening and closing of an oil circulating flow passage hole provided on a side wall of the oil reserving chamber. The valve member has magnetism and is actuated by an electromagnet supported on the rotary shaft for opening or closing the oil circulating flow passage hole. A ring-like magnetic body is disposed between the electromagnet and the rotary shaft for efficiently transmitting a magnetic flux of the electromagnet to the armature of the valve member. The external control type fan clutch device achieves size reduction, weight reduction and power saving.Type: GrantFiled: June 6, 2014Date of Patent: January 19, 2016Assignee: Usui Kokusai Sangyo Kaisha LimitedInventors: Satoshi Kubota, Hiroki Sugawara
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Publication number: 20150144220Abstract: Provided is a pipe having a heat-resistant and corrosion-resistant multi-layered plated layer excellent in workability. The pipe includes a multi-layered plated layer including: a ZnNi alloy plated layer that has a Ni content of 5% to 9% and a layer thickness of 3 ?m to 9 ?m and is formed as a first layer on a surface of a base steel pipe; another ZnNi alloy plated layer that has a Ni content of 10% to 15% and a layer thickness of 1 ?m to 3 ?m and is deposited as a second layer on the ZnNi alloy plated layer formed as the first layer; and a chromate film that is formed on the ZnNi alloy plated layer formed as the second layer.Type: ApplicationFiled: June 27, 2013Publication date: May 28, 2015Applicant: USUI KOKUSAI SANGYO KAISHA LIMITEDInventor: Yasushige Ishii
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Patent number: D730495Type: GrantFiled: April 8, 2013Date of Patent: May 26, 2015Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventor: Jun Umehara
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Patent number: D731626Type: GrantFiled: April 8, 2013Date of Patent: June 9, 2015Assignee: USUI Kokusai Sangyo Kaisha LimitedInventor: Jun Umehara
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Patent number: D749195Type: GrantFiled: July 8, 2014Date of Patent: February 9, 2016Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Mitsumasa Otaka, Toshiyuki Omura, Nobuo Kato
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Patent number: D749196Type: GrantFiled: July 8, 2014Date of Patent: February 9, 2016Assignee: USUI KOKUSAI SANGYO KAISHA LIMITEDInventors: Mitsumasa Otaka, Toshiyuki Omura, Koichi Hayashi
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Patent number: D764640Type: GrantFiled: July 8, 2014Date of Patent: August 23, 2016Assignee: USUI Kokusai Sangyo Kaisha LimitedInventors: Mitsumasa Otaka, Toshiyuki Omura, Nobuo Kato
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Patent number: D812199Type: GrantFiled: January 6, 2016Date of Patent: March 6, 2018Assignee: USUI Kokusai Sangyo Kaisha LimitedInventors: Junichi Ichikawa, Satoshi Notoya
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Patent number: D812200Type: GrantFiled: January 6, 2016Date of Patent: March 6, 2018Assignee: USUI Kokusai Sangyo Kaisha LimitedInventors: Junichi Ichikawa, Satoshi Notoya
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Patent number: D812201Type: GrantFiled: January 6, 2016Date of Patent: March 6, 2018Assignee: USUI Kokusai Sangyo Kaisha LimitedInventors: Junichi Ichikawa, Satoshi Notoya