Patents by Inventor Kimio Takahashi
Kimio Takahashi 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: 7303829Abstract: There is provided a magnetic recording medium having an extremely thin magnetic layer, in which, not only corrosion of the magnetic layer is suppressed, but also the storage properties and the electromagnetic conversion properties are improved. The magnetic recording medium comprises: an elongated nonmagnetic substrate; a first shielding layer comprised of a metal or an alloy; a second shielding layer comprised of a material which is more hardly oxidized than the first shielding layer, and a magnetic layer, formed by a vacuum thin film formation technique, having a thickness of 55 nm or less. A total thickness of the first shielding layer and the second shielding layer is 2 to 50 nm.Type: GrantFiled: May 5, 2004Date of Patent: December 4, 2007Assignee: Sony CorporationInventors: Kimio Takahashi, Sachie Shoji
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Patent number: 7255957Abstract: A non-aqueous electrolyte cell is provided having improved cell characteristics and which maintains a cell shape encapsulated in a laminate film even when overdischarged to a cell voltage of 0 V. The cell includes an anode, an electrolyte, and a cathode containing a compound having the formula LixFe1-yMyPO4, wherein 0.05?x?1.2 and 0?y?0.8, and wherein M is at least one element selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Al, Ga, Mg, B and Nb. Exposed portions of an anode current collector and a cathode current collector prevent internal shorting of the cell.Type: GrantFiled: October 2, 2001Date of Patent: August 14, 2007Assignee: Sony CorporationInventors: Kimio Takahashi, Mamoru Hosoya, Masami Miyake
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Publication number: 20070135119Abstract: An operation control unit of a reception system includes a visitor ID information DB for storing therein visitor comparison information and visitor ID information including a phone number of a receiver of a visitor; an identifying unit for identifying the visitor when visitor information obtained by a camera or the like of the robot is identical to the visitor comparison information; a phone calling module for calling the phone number of a mobile terminal of the receiver via a phone network, when the visitor is identified; an informing content determining unit for determining an informing content to the receiver based on the visitor ID information, when the visitor is identified; and a speech generating part for converting the received information into a voice. The informing content is sent to the mobile terminal of the receiver via the phone network.Type: ApplicationFiled: December 11, 2006Publication date: June 14, 2007Inventors: Sachie Hashimoto, Kimio Takahashi
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Publication number: 20070117013Abstract: An non-aqueous electrolyte cell having superior electronic conductivity and superior cell characteristics. A cathode active material used for the cell is a composite material of a compound having the formula LixFePO4, where 0<x?1.0, and a carbon material, wherein the specific surface area as found by the Bullnauer Emmet Teller formula is not less than 10.3 m2/g.Type: ApplicationFiled: November 30, 2006Publication date: May 24, 2007Applicant: Sony CorporationInventors: Mamoru Hosoya, Kimio Takahashi, Yuzuru Fukushima
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Publication number: 20070062764Abstract: Pistons 3 and 7 are pressed to a friction member 11 at two points that are positioned at a rotating-in side and a rotating-out side in a rotating direction of a brake rotor 10. An axial force control is performed for the piston 3 on the rotating-out side, and a position control based on the position of the piston 3 on the rotating-out side is performed for the piston 7 on the rotating-in side.Type: ApplicationFiled: September 20, 2006Publication date: March 22, 2007Inventors: Hideaki Takahashi, Kimio Takahashi
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Publication number: 20060284202Abstract: There are provided an electronic component production method and an electronic component by which the number of scribing processes can be reduced and the productivity can be made higher while surely preventing short circuiting during the production. An electronic component including a short ring residue portion and a method of producing the electronic component are provided.Type: ApplicationFiled: May 31, 2006Publication date: December 21, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Naohiro Nakane, Kimio Takahashi
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Patent number: 7101521Abstract: A LiFePO4 carbon composite material is to be synthesized in a single phase satisfactorily to prevent the deterioration of the performance of the cathode active material from occurring and achieve superior cell characteristics. In preparing a cathode active material, starting materials for synthesis of a compound represented by the general formula LixFePO4, where 0<x?1, are mixed, milled and a carbon material is added to the resulting mass at an optional time point in the course of mixing, milling and sintering. Li3PO4, Fe3(PO4)2 or its hydrates Fe3(PO4)2.nH2O, where n denotes the number of hydrates, are used as the starting materials for synthesis of LixFePO4. The temperature of a product from said sintering is set to 305° C. or less when said product from said sintering is exposed to atmosphere.Type: GrantFiled: September 19, 2001Date of Patent: September 5, 2006Assignee: Sony CorporationInventors: Mamoru Hosoya, Kimio Takahashi, Yuzuru Fukushima
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Publication number: 20060191753Abstract: An actuator 23d for pushing a plurality of friction plates 44, 44 to a plurality of plates 37, 37 to be braked is composed of members including electroactive polymer, the shape of the elastomer of which is changed by electric energy.Type: ApplicationFiled: April 4, 2006Publication date: August 31, 2006Inventors: Kimio Takahashi, Kazuhiro Sekiguchi, Hideaki Takahashi
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Publication number: 20050196647Abstract: A magnetic recording medium having good corrosion resistance, electromagnetic conversion characteristics and storability is obtained. In a magnetic recording medium including a foundation layer and a magnetic layer having a thickness of 55 nm or less, which is formed by a vacuum thin film forming technique, on one principal surface of an elongate non-magnetic substrate, the foundation layer is made of a silicon nitride film having a thickness of 2 nm to 50 nm. A magneto-resistive magnetic head or a giant magneto-resistive magnetic head is slid on the magnetic recording medium so as to record and reproduce signals.Type: ApplicationFiled: April 29, 2005Publication date: September 8, 2005Inventor: Kimio Takahashi
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Publication number: 20050196646Abstract: A magnetic recording medium having good corrosion resistance, electromagnetic conversion characteristics and storability is obtained. In a magnetic recording medium including a foundation layer and a magnetic layer having a thickness of 55 nm or less, which is formed by a vacuum thin film forming technique, on one principal surface of an elongate non-magnetic substrate, the foundation layer is made of a silicon nitride film having a thickness of 2 nm to 50 nm. A magneto-resistive magnetic head or a giant magneto-resistive magnetic head is slid on the magnetic recording medium so as to record and reproduce signals.Type: ApplicationFiled: April 29, 2005Publication date: September 8, 2005Inventor: Kimio Takahashi
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Patent number: 6938736Abstract: An electric parking brake mechanism characterized in an electric parking brake for pressing a friction member to a braked member via a force transmission converting mechanism for converting a rotational movement of an electric motor to a linear movement, including an input shaft connected to a side of the electric motor, an output shaft connected to a side of a brake mechanism for pressing the friction member to the brake member and a cam mechanism interposed between the input shaft and the output shaft, the cam mechanism is provided with a plurality of cam members and each having a cam face having a radius gradually increasing relative to a rotational center and in driving only a side of the output shaft, rotation of the output shaft is hampered by operating all of the plurality of cam members to constitute sides of large diameters.Type: GrantFiled: November 25, 2003Date of Patent: September 6, 2005Assignee: Akebono Brake Industry Co., Ltd.Inventor: Kimio Takahashi
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Patent number: 6926975Abstract: A magnetic recording medium having good corrosion resistance, electromagnetic conversion characteristics and storability is obtained. In a magnetic recording medium including a foundation layer and a magnetic layer having a thickness of 55 nm or less, which is formed by a vacuum thin film forming technique, on one principal surface of an elongate non-magnetic substrate, the foundation layer is made of a silicon nitride film having a thickness of 2 nm to 50 nm. A magneto-resistive magnetic head or a giant magneto-resistive magnetic head is slid on the magnetic recording medium so as to record and reproduce signals.Type: GrantFiled: July 3, 2003Date of Patent: August 9, 2005Assignee: Sony CorporationInventor: Kimio Takahashi
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Publication number: 20040245054Abstract: An actuator 23d for pushing a plurality of friction plates 44, 44 to a plurality of plates 37, 37 to be braked is composed of members including electroactive polymer, the shape of the elastomer of which is changed by electric energy.Type: ApplicationFiled: June 4, 2004Publication date: December 9, 2004Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Kimio Takahashi, Kazuhiro Sekiguchi, Hideaki Takahashi
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Publication number: 20040241499Abstract: There is provided a magnetic recording medium having an extremely thin magnetic layer, in which, not only corrosion of the magnetic layer is suppressed, but also the storage properties and the electromagnetic conversion properties are improved. The magnetic recording medium comprises: an elongated nonmagnetic substrate; a first shielding layer comprised of a metal or an alloy; a second shielding layer comprised of a material which is more hardly oxidized than the first shielding layer, and a magnetic layer, formed by a vacuum thin film formation technique, having a thickness of 55 nm or less. A total thickness of the first shielding layer and the second shielding layer is 2 to 50 nm.Type: ApplicationFiled: May 5, 2004Publication date: December 2, 2004Applicant: Sony CorporationInventors: Kimio Takahashi, Sachie Shoji
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Patent number: 6811924Abstract: A LiFePO4 carbon composite material is to be synthesized in a single phase satisfactorily to achieve superior cell characteristics. In preparing a cathode active material, a starting material for synthesis of a compound represented by the general formula LixFePO4, where 0<x≦1, is mixed, milled and sintered and a carbon material is added to the resulting mass at an optional time point in the course of mixing, milling and sintering. Li3PO4, Fe3(PO4)2 or its hydrates Fe3(PO4)2.nH2O, where n denotes the number of hydrates, are used as the starting material for synthesis of LixFePO4. The particle size distribution of particles of the starting material for synthesis following the milling with the particle size not less than 3 &mgr;m is set to 2.2% or less in terms of the volumetric integration frequency.Type: GrantFiled: September 24, 2001Date of Patent: November 2, 2004Assignee: Sony CorporationInventors: Mamoru Hosoya, Kimio Takahashi, Yuzuru Fukushima
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Patent number: 6797431Abstract: A LiFePO4 carbon composite material is to be synthesized in a single phase satisfactorily to achieve superior cell characteristics. In preparing a cathode active material, starting materials for synthesis of a compound represented by the general formula LixFePO4, where 0<x≦1, are mixed, milled and a carbon material is added to the resulting mass at an optional time point in the course of mixing, milling and sintering. Li3PO4, Fe3(PO4)2 or its hydrates Fe3(PO4)2·nH2O, where n denotes the number of hydrates, are used as the starting materials for synthesis of LixFePO4. The the temperature of a product from said sintering is set to 305° C. or less when said product from said sintering is exposed to atmosphere. The oxygen concentration in a sintering atmosphere is set to 1012 ppm in volume or less at the time point of sintering.Type: GrantFiled: September 27, 2001Date of Patent: September 28, 2004Assignee: Sony CorporationInventors: Mamoru Hosoya, Kimio Takahashi, Yuzuru Fukushima
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Publication number: 20040104087Abstract: An electric parking brake mechanism characterized in an electric parking brake for pressing a friction member to a braked member via a force transmission converting mechanism for converting a rotational movement of an electric motor to a linear movement, including an input shaft connected to a side of the electric motor, an output shaft connected to a side of a brake mechanism for pressing the friction member to the brake member and a cam mechanism interposed between the input shaft and the output shaft, the cam mechanism is provided with a plurality of cam members and each having a cam face having a radius gradually increasing relative to a rotational center and in driving only a side of the output shaft, rotation of the output shaft is hampered by operating all of the plurality of cam members to constitute sides of large diameters.Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventor: Kimio Takahashi
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Publication number: 20040009374Abstract: A magnetic recording medium having good corrosion resistance, electromagnetic conversion characteristics and storability is obtained. In a magnetic recording medium including a foundation layer and a magnetic layer having a thickness of 55 nm or less, which is formed by a vacuum thin film forming technique, on one principal surface of an elongate non-magnetic substrate, the foundation layer is made of a silicon nitride film having a thickness of 2 nm to 50 nm. A magneto-resistive magnetic head or a giant magneto-resistive magnetic head is slid on the magnetic recording medium so as to record and reproduce signals.Type: ApplicationFiled: July 3, 2003Publication date: January 15, 2004Inventor: Kimio Takahashi
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Patent number: 6649307Abstract: The present invention provides a non-aqueous electrolyte secondary cell including: a cathode containing a manganese oxide or a lithium-manganese composite oxide; an anode containing a lithium metal, a lithium alloy, or a material capable of doping/dedoping lithium; and an electrolyte containing at least two electrolyte salts, one of which is LiBF4 contained in the range from 0.005 mol/l to 0.3 mol/l. This enables to increase the cycle characteristic, preventing deterioration of the cell characteristic caused by a repeated use.Type: GrantFiled: July 10, 2001Date of Patent: November 18, 2003Assignee: Sony CorporationInventors: Hideki Terashima, Yuzuru Fukushima, Kimio Takahashi, Hiroko Ohnuma, Kotaro Satori, Akinori Kita
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Publication number: 20030143465Abstract: A cell which is not deteriorated in cell characteristics and which maintains a cell shape encapsulated in a laminate film even when overdischarged to a cell voltage of 0V. The cell includes a cathode containing a compound having the formula LixFe1-yMyPO4, where M is at least one selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Al, Ga, Mg, B and Nb, with 0.05≦x≦1.2 and 0≦y≦0.8, an anode and a solid electrolyte. An electrode member 1 comprised of the cathode and the anode, layered together with the interposition of a solid electrolyte, is encapsulated in a laminate film 2.Type: ApplicationFiled: October 2, 2001Publication date: July 31, 2003Inventors: Kimio Takahashi, Mamoru Hosoya, Masami Miyake