Patents by Inventor Yasuhiro Ouchi
Yasuhiro Ouchi 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: 8177561Abstract: A socket contact terminal for electrical connection between a connection portion formed of a metal conductor on a printed circuit board and a connection terminal of an IC package. The contact terminal comprises a metal terminal composed of a main columnar portion and arm portions on both sides and having an angular U shape and an elastomeric member attached to the metal terminal. A metal surface is exposed from the outer surface of each arm portion. The elastomeric member is firmly held between the arm portions of the metal terminal and exhibits a repulsive force when the arm portions are pressed in the direction that the arm portions approach each other.Type: GrantFiled: May 23, 2007Date of Patent: May 15, 2012Assignee: Fujikura Ltd.Inventors: Yasuhiro Ouchi, Shinichi Nikaido, Haruo Miyazawa, Hirohito Watanabe, Katsuya Yamagami
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Patent number: 8137113Abstract: A socket includes an insulating elastomeric sheet having a penetration hole, metal circuits formed on at least one of the front and rear surfaces of the elastomeric sheet, and a through-hole having a metal film formed on an inner wall of the penetration hole. The metal circuit on the front surface of the elastomeric sheet is electrically connected to the metal circuit on the rear surface of the elastomeric sheet via the through-hole. With such a configuration of the socket, it is possible to provide a socket contact terminal and a semiconductor device having the same, which is suitable for low-resistance, large-current, and high-speed configurations.Type: GrantFiled: June 7, 2007Date of Patent: March 20, 2012Assignee: Fujikura Ltd.Inventors: Yasuhiro Ouchi, Shinichi Nikaido, Haruo Miyazawa
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Patent number: 7887336Abstract: A double-sided connector is provided including: an insulating member having an insulating substrate and an elastomer insert-molded on both faces of the insulating substrate, and a through-hole formed along a thickness direction of the insulating substrate and the elastomer; a conductive member formed on an inner face of the through-hole, both ends of the conductive member exposed at the both faces; and a contact terminal part provided at one end of the conductive member. A protrusion is formed on at least a first face of the two faces of the insulating member and near one of the two ends of the through-hole. The protrusion formed by a part of the elastomer protruding from the first face enables an approximately hemispherical point of contact part connected to the sloping part and covering the top.Type: GrantFiled: June 29, 2009Date of Patent: February 15, 2011Assignee: Fujikura Ltd.Inventors: Shinichi Nikaido, Katsuya Yamagami, Yasuhiro Ouchi
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Publication number: 20100081342Abstract: This double-sided connector is provided with: an insulating member having an insulating substrate and an elastomer insert-molded on both faces of the insulating substrate, and a through-hole formed along a thickness direction of the insulating substrate and the elastomer; a conductive member formed on an inner face of the through-hole, both ends of the conductive member exposed at the both faces; and a contact terminal part provided at one end of the conductive member. A protrusion is formed on at least a first face of the two faces of the insulating member and near one of the two ends of the through-hole, the protrusion formed by a part of the elastomer protruding from the first face. The contact terminal part includes a ring part formed around the end of the through-hole on the first face, a sloping part connected to the ring part and extended slantingly toward a top of the protrusion, and an approximately hemispherical point of contact part connected to the sloping part and covering the top.Type: ApplicationFiled: June 29, 2009Publication date: April 1, 2010Applicant: FUJIKURA LTD.Inventors: Shinichi NIKAIDO, Katsuya YAMAGAMI, Yasuhiro OUCHI
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Publication number: 20090250256Abstract: A socket contact terminal for electrical connection between a connection portion formed of a metal conductor on a printed circuit board and a connection terminal of an IC package. The contact terminal comprises a metal terminal composed of a main columnar portion and arm portions on both sides and having an angular U shape and an elastomeric member attached to the metal terminal. A metal surface is exposed from the outer surface of each arm portion. The elastomeric member is firmly held between the arm portions of the metal terminal and exhibits a repulsive force when the arm portions are pressed in the direction that the arm portions approach each other.Type: ApplicationFiled: May 23, 2007Publication date: October 8, 2009Applicant: FUJIKURA, LTD.Inventors: Yasuhiro Ouchi, Shinichi Nikaido, Haruo Miyazawa, Hirohito Watanabe, Katsuya Yamagami
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Publication number: 20090197437Abstract: A socket includes an insulating elastomeric sheet having a penetration hole, metal circuits formed on at least one of the front and rear surfaces of the elastomeric sheet, and a through-hole having a metal film formed on an inner wall of the penetration hole. The metal circuit on the front surface of the elastomeric sheet is electrically connected to the metal circuit on the rear surface of the elastomeric sheet via the through-hole. With such a configuration of the socket, it is possible to provide a socket contact terminal and a semiconductor device having the same, which is suitable for low-resistance, large-current, and high-speed configurations.Type: ApplicationFiled: June 7, 2007Publication date: August 6, 2009Applicant: Fujikura Ltd.Inventors: Yasuhiro Ouchi, Shinichi Nikaido, Haruo Miyazawa
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Patent number: 7203397Abstract: There is provided a polarization maintaining optical fiber coupler and a method of manufacturing this polarization maintaining optical fiber coupler in which manufacturing is simplified and excess loss is reduced. A polarization maintaining optical fiber coupler is provided in which, in at least one of the polarization maintaining optical fibers forming the fused and extended portion, the ratio of the [diameter of the core/the diameter of the cladding] or [the distance between the two stress applying portions/the diameter of the cladding] is greater than the ration of the [diameter of the core/the diameter of the cladding] or [the distance between the two stress applying portions/the diameter of the cladding in the portions of the polarization maintaining optical fibers that do not form the fused and extended portion]. In addition, in this polarization maintaining optical fiber coupler, in the fused and extended portion, the stress applying portions are enveloped by the cladding.Type: GrantFiled: August 11, 2003Date of Patent: April 10, 2007Assignee: Fujikura Ltd.Inventors: Yasuhiro Ouchi, Daiichiro Tanaka
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Publication number: 20040033002Abstract: There is provided a polarization maintaining optical fiber coupler and a method of manufacturing this polarization maintaining optical fiber coupler in which manufacturing is simplified and excess loss is reduced. A polarization maintaining optical fiber coupler is provided in which, in at least one of the polarization maintaining optical fibers forming the fused and extended portion, the ratio of the [diameter of the core/the diameter of the cladding] or [the distance between the two stress applying portions/the diameter of the cladding] is greater than the ration of the [diameter of the core/the diameter of the cladding] or [the distance between the two stress applying portions/the diameter of the cladding in the portions of the polarization maintaining optical fibers that do not form the fused and extended portion].Type: ApplicationFiled: August 11, 2003Publication date: February 19, 2004Applicant: FUJIKURA LTD.Inventors: Yasuhiro Ouchi, Daiichiro Tanaka