Patents by Inventor Shigeki Ishikawa
Shigeki Ishikawa 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: 11028893Abstract: An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.Type: GrantFiled: February 3, 2020Date of Patent: June 8, 2021Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Noritoshi Takamura, Shigeki Ishikawa, Takeshi Suzuki
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Publication number: 20200173510Abstract: An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Inventors: Toshio Kazama, Noritoshi Takamura, Shigeki Ishikawa, Takeshi Suzuki
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Patent number: 10591011Abstract: An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.Type: GrantFiled: June 28, 2016Date of Patent: March 17, 2020Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Noritoshi Takamura, Shigeki Ishikawa, Takeshi Suzuki
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Publication number: 20180180126Abstract: An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.Type: ApplicationFiled: June 28, 2016Publication date: June 28, 2018Inventors: Toshio Kazama, Noritoshi Takamura, Shigeki Ishikawa, Takeshi Suzuki
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Patent number: 8814586Abstract: A connector that includes a male terminal which has a conductive property and a tip portion of which is formed in a bar shape, and includes a coil spring formed of a conductive wire rod with an inner diameter smaller than a diameter of the tip portion of the male terminal and that linearly extends at an end portion at which the male terminal is inserted. The male terminal is inserted into the coil spring while a force that expands an inner diameter of at least a vicinity of the end portion is applied to an extending portion, and thereafter fitted to the coil spring by releasing the force.Type: GrantFiled: March 23, 2011Date of Patent: August 26, 2014Assignee: NHK Spring Co., Ltd.Inventors: Shigeki Ishikawa, Noritoshi Takamura, Makoto Saito, Michiya Masuda
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Patent number: 8744673Abstract: In a vehicle air conditioner for a vehicle cabin interior is split into a plurality of air-conditioned zones, that is capable of independent air conditioning control for individual air-conditioned zones, provided is a solar radiation sensor that measures solar radiation levels individually for a first air-conditioned zone and a second air-conditioned zone adjacent thereto; a judging unit (100) that judges whether or not a difference between the solar radiation level of the first air-conditioned zone and the solar radiation level of the second air-conditioned zone falls within a predetermined range; a first controller (101) that performs identical air conditioning control for the first air-conditioned zone and the second air-conditioned zone when the difference falls within the predetermined range; and a second controller (102) that performs independent air conditioning control individually for the first air-conditioned zone and the second air-conditioned zone when the difference falls outside the predetermineType: GrantFiled: October 9, 2009Date of Patent: June 3, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Suzuki Motor CorporationInventors: Katsunari Shiroyama, Hideaki Tatenoi, Tomoki Izawa, Yasushi Ohta, Shigeki Ishikawa
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Patent number: 8690587Abstract: A connection terminal includes a first contact member that has a conductive property, that has an approximately plate shape, and that includes a tip portion, a tip of which is sharply pointed; a base end portion, a width of which is less than a width of the tip portion and which extends from a base end of the tip portion; and a protrusion protruding in a direction perpendicular to one plane of the base end portion. The connection terminal also includes a second contact member that has a conductive property, that has an approximately plate shape, and that includes a tip portion, a tip of which is sharply pointed; and a base end portion, a width of which is less than a width of the tip portion and which extends from a base end of the tip portion. The second contact member slides against the protrusion in a direction in which the base end portion extends.Type: GrantFiled: December 21, 2010Date of Patent: April 8, 2014Assignee: NHK Spring Co., Ltd.Inventor: Shigeki Ishikawa
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Patent number: 8410610Abstract: A connecting terminal, a semiconductor package, a wiring board, a connector, and a microcontactor that can achieve a stable contact with a contact target are provided. To achieve the object and to establish an electrical connection to a contact target by making a physical contact with the contact target, there are provided a plurality of conductive terminal-forming members each having a terminal portion, which is extended in a band shape and at least a part of a surface of which forms a curved surface. Each terminal portion is configured so that a part of which is laminated on a part of at least one terminal portion in a thickness direction. All the terminal portions may be laminated at respective tip portions in the thickness direction.Type: GrantFiled: October 16, 2008Date of Patent: April 2, 2013Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Shigeki Ishikawa
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Publication number: 20130012047Abstract: A connector that includes a male terminal which has a conductive property and a tip portion of which is formed in a bar shape, and includes a coil spring formed of a conductive wire rod with an inner diameter smaller than a diameter of the tip portion of the male terminal and that linearly extends at an end portion at which the male terminal is inserted. The male terminal is inserted into the coil spring while a force that expands an inner diameter of at least a vicinity of the end portion is applied to an extending portion, and thereafter fitted to the coil spring by releasing the force.Type: ApplicationFiled: March 23, 2011Publication date: January 10, 2013Applicant: NHK SPRING CO., LTD.Inventors: Shigeki Ishikawa, Noritoshi Takamura, Makoto Saito, Michiya Masuda
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Patent number: 8344747Abstract: A probe unit includes: large diameter probes; small diameter probes; a large-diameter probe holder having large hole portions which individually hold the large diameter probes, and reception hole portions which have diameters smaller than those of the large hole portions, communicate with the large hole portions, and receive end portions of the small diameter probes so that the end portions come into contact with the large diameter; and a small-diameter probe holder probes having small hole portions which individually hold the small diameter probes. The central axes of the large hole portion and the small hole portion that communicate with each other are separated from each other, and the small hole portions include two small hole portions which are adjacent to each other and of which central axes are separated from each other by a distance shorter than a distance between the central axes of two large hole portions that are corresponding to the two small hole portions.Type: GrantFiled: January 22, 2009Date of Patent: January 1, 2013Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Kohei Hironaka, Shigeki Ishikawa
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Publication number: 20120287591Abstract: A connection member that connects different boards, includes a plurality of conductive elastic members each of which includes two contact portions that are in contact with the different boards at ends, respectively, and an elastic portion that is provided between the two contact portions and is stretchable according to a force applied from outside the connection member, and an insulating restraining member that restrains movement of each of the elastic members by holding part of each of the elastic members, so that the force due to board vibrations applied to a joint of solder or the like can be relaxed.Type: ApplicationFiled: November 24, 2010Publication date: November 15, 2012Applicant: NHK SPRING CO., LTD.Inventor: Shigeki Ishikawa
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Publication number: 20120264318Abstract: A connection terminal includes a first contact member that has a conductive property, that has an approximately plate shape, and that includes a tip portion, a tip of which is sharply pointed; a base end portion, a width of which is less than a width of the tip portion and which extends from a base end of the tip portion; and a protrusion) protruding in a direction perpendicular to one plane of the base end portion. The connection terminal also includes a second contact member that has a conductive property, that has an approximately plate shape, and that includes a tip portion, a tip of which is sharply pointed; and a base end portion, a width of which is less than a width of the tip portion and which extends from a base end of the tip portion. The second contact member slides against the protrusion in a direction in which the base end portion extends.Type: ApplicationFiled: December 21, 2010Publication date: October 18, 2012Applicant: NHK SPRING CO., LTD.Inventor: Shigeki Ishikawa
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Publication number: 20120019277Abstract: A spring wire rod includes a wire core that is made of a conductive material having an electrical resistivity of equal to or lower than 5.00×10?8 ?•m, and a coating member 3 that is made of a spring material having a longitudinal elastic modulus of equal to or higher than 1.00×104 kgf/mm2 and coats an outer circumference of the core. A coating thickness d of the coating member is smaller than a minimum value r of a distance between the center of gravity of a transverse cross section of the core and the outer edge of the transverse cross section.Type: ApplicationFiled: April 5, 2010Publication date: January 26, 2012Applicant: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Shigeki Ishikawa
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Patent number: 8087955Abstract: A method for manufacturing a conductive contact holder includes forming, from an insulating material, a holder member for holding a plurality of conductive contacts; forming, from a conductive material, a substrate having a hollow portion to which the holder member can be fitted; and fixing the holder member formed from the insulating material by fitting the substrate into the hollow portion of the substrate formed from the conductive material.Type: GrantFiled: October 27, 2006Date of Patent: January 3, 2012Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Shigeki Ishikawa
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Publication number: 20110160958Abstract: In a vehicle air conditioner for a vehicle cabin interior is split into a plurality of air-conditioned zones, that is capable of independent air conditioning control for individual air-conditioned zones, provided is a solar radiation sensor that measures solar radiation levels individually for a first air-conditioned zone and a second air-conditioned zone adjacent thereto; a judging unit (100) that judges whether or not a difference between the solar radiation level of the first air-conditioned zone and the solar radiation level of the second air-conditioned zone falls within a predetermined range; a first controller (101) that performs identical air conditioning control for the first air-conditioned zone and the second air-conditioned zone when the difference falls within the predetermined range; and a second controller (102) that performs independent air conditioning control individually for the first air-conditioned zone and the second air-conditioned zone when the difference falls outside the predetermineType: ApplicationFiled: October 9, 2009Publication date: June 30, 2011Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., SUZUKI MOTOR CORPORATIONInventors: Katsunari Shiroyama, Hideaki Tatenoi, Tomoki Izawa, Yasushi Ohta, Shigeki Ishikawa
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Patent number: 7956288Abstract: A shape of a cross-section perpendicular to a longitudinal direction of a main body section of a conductive contact is anisotropic.Type: GrantFiled: September 7, 2006Date of Patent: June 7, 2011Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Shigeki Ishikawa
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Patent number: 7950927Abstract: A conductive contact holder includes a holder substrate and a holding member. The holder substrate is made of a conductive material and has an opening for holding a conductive contact for inputting and outputting a signal to and from a circuit structure. The holding member is formed by filling the opening with an insulating material, smoothing the surface of the insulating material, and forming a hole through the insulating material for inserting the conductive contact.Type: GrantFiled: December 13, 2007Date of Patent: May 31, 2011Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Tomohiro Kawarabayashi, Shigeki Ishikawa, Shinya Miyaji
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Publication number: 20110025358Abstract: A probe unit includes: large diameter probes; a small diameter probes; a large-diameter probe holder having large hole portions which individually hold the large diameter probes, and hole portions which have diameters smaller than those of the large hole portions, communicate with the large hole portions, and receive end portions of the small diameter probes so that the end portions come into contact with the large diameter; and a small-diameter probe holder probes having small hole portions which individually hold the small diameter probes The central axes of the large hole portion and the small hole portion that communicate with each other are separated from each other, and the small hole portions include two small hole portions which are adjacent to each other and of which central axes are separated from each other by a distance shorter than a distance between the central axes of two large hole portions that are corresponding to the two small hole portions.Type: ApplicationFiled: January 22, 2009Publication date: February 3, 2011Applicant: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Kohei Hironaka, Shigeki Ishikawa
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Patent number: 7832091Abstract: A method for manufacturing a conductive contact holder includes forming, from a conductive material, a substrate having a hollow portion to which a holder member for holding a plurality of conductive contacts can be fitted; fixing the substrate formed from the conductive material and an insulating member by fitting the substrate and the insulating member into the hollow portion of the substrate, the insulating member being a raw material of the holder member; polishing a surface of the fixed holder member and a surface of the substrate adjoining the surface so as to make the surfaces smooth; and forming a plurality of holder holes for containing the conductive contacts, respectively, the holder holes penetrating the holder member, the surface of which is polished. The fixing includes filling an insulating adhesive between the holder member and the substrate.Type: GrantFiled: October 27, 2006Date of Patent: November 16, 2010Assignee: NHK Spring Co., Ltd.Inventors: Toshio Kazama, Shigeki Ishikawa
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Publication number: 20100219536Abstract: A connecting terminal, a semiconductor package, a wiring board, a connector, and a microcontactor that can achieve a stable contact with a contact target are provided. To achieve the object and to establish an electrical connection to a contact target by making a physical contact with the contact target, there are provided a plurality of conductive terminal-forming members each having a terminal portion, which is extended in a band shape and at least a part of a surface of which forms a curved surface. Each terminal portion is configured so that a part of which is laminated on a part of at least one terminal portion in a thickness direction. All the terminal portions may be laminated at respective tip portions in the thickness direction.Type: ApplicationFiled: October 16, 2008Publication date: September 2, 2010Applicant: NHK Spring Co., ltdInventors: Toshio Kazama, Shigeki Ishikawa