Patents by Inventor Satoru Takada

Satoru Takada 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).

  • Patent number: 11214233
    Abstract: An electronic key device includes: a communication device; and a processor including hardware, the processor being configured to determine whether the electronic key device is in a predetermined state, excluding a stationary state and a state where the electronic key device is positioned far away from a vehicle by a predetermined distance or more, disable execution of a function of locking or unlocking the vehicle through information communication with the vehicle via the communication device when the electronic key device is in the predetermined state, and enable execution of the function when the electronic key device is not in the predetermined state.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: January 4, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CMC CORPORATION
    Inventors: Shin Sakurada, Yasuhisa Ohta, Naoyuki Takada, Satoru Sakuma, Yuki Tatsumoto, Tetsu Yajima
  • Patent number: 10357944
    Abstract: An aluminum alloy substrate bears a first layer on at least one side thereof, and a second layer on at least part of the first layer. The first layer includes an oxide film containing Mg in a content of from 0.1 atomic percent to less than 30 atomic percent. The second layer contains siloxane bonds. The second layer is disposed in a mass of coating of from 0.1 mg/m2 to less than 30 mg/m2. Assume that parallel polarized light is applied to the side bearing the first layer and the second layer at an incident angle of 75°, and resulting data are analyzed by Fourier-transform infrared spectroscopy to give a spectrum. In the spectrum, a peak occurring adjacent to 1057 cm?1 has an area of 0.01 or more with respect to a base line drawn from 1026 cm?1 to 1084 cm?1.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 23, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Satoru Takada, Akihiko Tatsumi
  • Publication number: 20190177854
    Abstract: An aqueous solution for metal surface treatment includes an alkyl silicate or an oligomer thereof in a concentration of 0.005 mass % or more and less than 1 mass %, and an organic silane compound in a concentration of 0.005 mass % or more and less than 1 mass %. The aqueous solution has a pH of 2 or more and 7 or less.
    Type: Application
    Filed: May 10, 2017
    Publication date: June 13, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yusuke TAKAHASHI, Satoru TAKADA
  • Publication number: 20180216235
    Abstract: Provided is an aqueous solution for metal surface treatment. The aqueous solution contains a silicate compound in a concentration of 0.001 mass percent to less than 0.5 mass percent, and an organic silane compound in a concentration of 0.001 mass percent to less than 0.5 mass percent. The aqueous solution has a pH of 7 to 14. The aqueous solution for metal surface treatment enables production of a surface-treated metal article by a simplified process, where the surface-treated metal article resists deterioration in bond environment. This can reduce capital investment and production cost.
    Type: Application
    Filed: June 28, 2016
    Publication date: August 2, 2018
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Yusuke TAKAHASHI, Satoru TAKADA
  • Publication number: 20180216236
    Abstract: A method for producing an aluminum alloy material includes the steps of a) forming an oxide layer on at least part of an aluminum alloy substrate, and b) forming a surface treatment layer. The oxide layer in the step a) contains Mg in a content from 0.1 atomic percent to less than 30 atomic percent and has a Cu content controlled to less than 0.6 atomic percent. The step b) includes applying an aqueous solution onto at least part of the oxide layer. The aqueous solution has a pH of 7 to 14 and contains a silicate in a concentration of 0.001 mass percent to less than 0.5 mass percent, and an organic silane compound in a concentration of 0.001 mass percent to less than 0.5 mass percent. The method according to the present invention can produce an aluminum alloy material that resists deterioration in bond strength to offer excellent bond durability even when exposed to a hot and humid environment, and has excellent productivity.
    Type: Application
    Filed: June 28, 2016
    Publication date: August 2, 2018
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Satoru TAKADA, Yusuke TAKAHASHI
  • Patent number: 9892818
    Abstract: An aluminum alloy comprising more than 3.5% and up to 6.0% of Mg, 0.02 to 1.0% inclusive of Cu, 0.02 to 0.1% inclusive of Cr, and a remainder made up by Al and unavoidable impurities, wherein the contents of Si and Fe in the unavoidable impurities are limited to 0.05% or less and 0.05% or less, respectively, and wherein the number of intermetallic compound particles contained in the aluminum alloy and having a maximum length of 4 ?m or more is 50 particles or less per 1 mm2 of an arbitrary cross-sectional area of the aluminum alloy. An aluminum alloy is provided, which has excellent anodic-oxidation-treatability and can be used for providing an anodic-oxidation-treated aluminum alloy member having high withstand voltage properties and such excellent heat resistance that the occurrence of cracking under high temperatures conditions can be prevented.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 13, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Satoru Takada, Kazunori Kobayashi, Toshiyuki Tanaka, Kenichi Inoue
  • Patent number: 9871254
    Abstract: Provided is an electrode material with excellent tab weldability and realizing decreased contact resistance with an active material layer. A collector (electrode material) (1) is provided with a metal foil substrate (1a) and a carbon-containing conductive substance (1b), and is configured such that, when observed from a square viewfield with a surface area of 0.1 mm2, the conductive substance (1b) is arranged in islands on the surface of the substrate (1a) with a 1-80% coverage ratio of the conductive substance (1b) on the surface of the substrate (1a).
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: January 16, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Mamoru Hosokawa, Satoru Takada, Sho Katsura, Jun Suzuki, Toshiki Sato
  • Patent number: 9850590
    Abstract: Provided is an anodized aluminum film formed on a surface of a substrate that comprises aluminum or an aluminum alloy, the anodized aluminum film having a structure constituted of a single anodized film layer or a structure composed of superposed anodized film layers of two or more different kinds, wherein the outermost anodized film has a degree of film formation, defined by equation (1), of 1.3 or more and the proportion of the thickness of this anodized film in the entire film thickness is 3% or higher. Thus, the anodized aluminum film is inhibited from cracking in bent portions. As a result, the substrate is inhibited from corroding in corrosive-gas atmospheres, and a decrease in withstand voltage characteristics due to film cracking is inhibited. With this anodized aluminum film, enhanced withstand voltage characteristics can hence be attained: Degree of film formation=(thickness of anodized film)/(substrate thickness loss by anodization)??(1).
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 26, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Mamoru Hosokawa, Satoru Takada
  • Publication number: 20170349979
    Abstract: The present invention pertains to an Al—Mg—Si-based aluminum alloy plate comprising, by mass, 0.20-1.50% of Mg, 0.30-2.00% of Si, and 0.005-0.500% of Sn, the balance being Al and unavoidable impurities, wherein the aluminum alloy plate is characterized in having a structure in which, from among all crystallized substances having a circle-equivalent diameter within the range of 0.3-20 ?m as measured using a 500×-magnification SEM, crystallized substances containing Sn identified by an X-ray spectrometer have an average number density in the range of 10 per mm2 to 2,000 per mm2, the proportion of the aforementioned average number density of the crystallized substances containing Sn in relation to the average number density of all crystallized substances having the circle-equivalent diameter being within the range of 0.3-20 ?m is 70% or above. With this aluminum alloy plate, it is possible to improve filiform corrosion resistance without inhibiting moldability or BH properties after room-temperature aging.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 7, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takahiro OZAWA, Akihiko TATSUMI, Satoru TAKADA
  • Publication number: 20170349978
    Abstract: The present invention relates to an Al—Mg—Si sheet which contains, in terms of mass %, 0.3-1.0% Mg, 0.5-1.5% Si, 0.005-0.2% Sn, 0.02-1.0% Fe, and 0.02-0.6% Mn, with the remainder comprising Al and unavoidable impurities, characterized by having a structure wherein compounds that are detected with an SEM having a magnification of 500 diameters and are identified with an X-ray spectrometer include Sn compounds which contain Mn and Fe and which have an Sn content of 1.0 mass % or higher and a diameter of 0.3-20 ?m in terms of equivalent circular diameter, the average number density of the Sn compounds being 500-3,000 /mm2, and wherein the length of the boundary between each Sn compound and the aluminum matrix is in the range of 3-20/mm on average in terms of value obtained by dividing the total peripheral length of the Sn compound grain by the area thereof determined with the SEM.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 7, 2017
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Hisao SHISHIDO, Katsushi MATSUMOTO, Yasuhiro ARUGA, Satoru TAKADA, Takahiro OZAWA, Akihiko TATSUMI
  • Publication number: 20170334171
    Abstract: An aluminum alloy material is provided. The aluminum alloy material has excellent bonding durability and is not susceptible to decrease in the bonding strength even if exposed to a high-temperature humid environment. A bonded body, a member for automobiles, and a method for producing the aluminum alloy material are also provided. In the method for producing the aluminum alloy material, the etching amount is controlled to be less than 700 nm when a first film composed of an oxide film is formed on the surface of an aluminum alloy base; and after the formation of the first film by a treatment using an aqueous solution containing a silicate salt, which is the final stage of the substantial film formation, a second film having a siloxane bond is formed by performing a silane coupling treatment.
    Type: Application
    Filed: November 11, 2015
    Publication date: November 23, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Satoru TAKADA, Yusuke TAKAHASHI, Akihiko TATSUMI
  • Publication number: 20170275738
    Abstract: An Al—Mg—Si aluminum alloy material includes Sn. An oxide film formed on a surface of the aluminum alloy material is analyzed by a semi-quantitative analysis by X-ray photoelectron spectroscopy. A ratio of the number of Sn atoms to the number of Mg atoms in the oxide film is 0.001 to 3 on average. A ratio of the total number of atoms of Sn and Mg to the number of oxygen atoms is 0.001 to 0.2 on average.
    Type: Application
    Filed: August 27, 2015
    Publication date: September 28, 2017
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Takahiro OZAWA, Satoru TAKADA, Akihiko TATSUMI
  • Publication number: 20170175238
    Abstract: An aluminum alloy material, containing Al, Mg, Si and Sn, where an oxide coating is formed on a surface of the aluminum alloy material, and when the oxide coating formed on the surface of the aluminum alloy material is subjected to glow discharge emission spectroscopic analysis, as the maximum value of each content of Sn and Mg for a region from the surface of the oxide coating to a depth where oxygen amount becomes 15 at %, a Sn content is within a range of 0.01-10 at %, and a Mg content is 0 at % or more and less than 10 at %.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 22, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Akihiko TATSUMI, Satoru TAKADA, Takahiro OZAWA
  • Patent number: 9685662
    Abstract: An electrode material which has excellent tab weldability, realizes reduction of a contact resistance with an active material layer, and has good adhesion with a conductive material disposed in an island shape, is provided. An electrode material 1 includes a substrate 1a including a metal foil and a conductive material 1b containing carbon, wherein the conductive material 1b is disposed in an island shape on the surface of the substrate 1a when observed with a visual field of 300 ?m square, and the conductive material is fixed to the surface of the substrate together with a hydrophobic resin and a water-soluble resin.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 20, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Sho Katsura, Satoru Takada, Mamoru Hosokawa, Toshiki Sato
  • Patent number: 9669604
    Abstract: An aluminum-alloy plate (10) equipped with an aluminum-alloy substrate (1) and an aluminum-oxide film (2) formed on the surface of the aluminum-alloy substrate (1), wherein: the aluminum-oxide film (2) contains at least one type of additional element having a P-B ratio of 1.00 or more, zirconium in the amount of 0.01-10 atomic percent, and magnesium in the amount of 0.1 or more and less than 10 atomic percent; and the total amount of additional elements contained in the aluminum-oxide film (2) is 0.010-5.0 atomic percent. As a result, it is possible to provide: an aluminum-alloy plate which exhibits excellent post-degreasing-water-wettability stability even when in a high-temperature, high-humidity environment; and a joined body and a vehicle member which use the same.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 6, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Akihiko Tatsumi, Satoru Takada
  • Patent number: 9595723
    Abstract: A fuel cell separator (10) which comprises a base (1) constituted of titanium or a titanium alloy and a conductive carbon layer (2) that was formed by press-bonding a carbon powder to the base (1) and that covers the surface thereof; an interlayer (3) having been formed between the base (1) and the carbon layer (2). The interlayer (3) has been formed by a heat treatment in an atmosphere containing a slight amount of oxygen, contains titanium carbide yielded by the reaction of the Ti of the base (1) with the C of the carbon layer (2), and has an oxygen content of 0.1-40 at %.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 14, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Jun Suzuki, Toshiki Sato, Satoru Takada
  • Publication number: 20170066220
    Abstract: An aluminum alloy plate includes an aluminum-alloy substrate and a first film. The first film is formed on at least one surface of the aluminum-alloy substrate and includes an oxide film that contains Mg in an amount of 0.1 atomic % or more and less than 30 atomic % and Si in an amount of 5 atomic % or more and 40 atomic % or less and that has a Cu amount regulated to be less than 0.6 atomic % and an S amount regulated to be less than 5 atomic %.
    Type: Application
    Filed: February 19, 2015
    Publication date: March 9, 2017
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Akihiko TATSUMI, Satoru TAKADA
  • Publication number: 20160082702
    Abstract: An aluminum alloy substrate bears a first layer on at least one side thereof, and a second layer on at least part of the first layer. The first layer includes an oxide film containing Mg in a content of from 0.1 atomic percent to less than 30 atomic percent. The second layer contains siloxane bonds. The second layer is disposed in a mass of coating of from 0.1 mg/m2 to less than 30 mg/m2. Assume that parallel polarized light is applied to the side bearing the first layer and the second layer at an incident angle of 75°, and resulting data are analyzed by Fourier-transform infrared spectroscopy to give a spectrum. In the spectrum, a peak occurring adjacent to 1057 cm?1 has an area of 0.01 or more with respect to a base line drawn from 1026 cm?1 to 1084 cm?1.
    Type: Application
    Filed: May 21, 2014
    Publication date: March 24, 2016
    Applicant: KABUSHIKI KAISHA KOBE SHO (KOBE STEEL, LTD.)
    Inventors: Satoru TAKADA, Akihiko TATSUMI
  • Publication number: 20150325863
    Abstract: A material for fuel cell separators having excellent adhesion between a base and a carbon layer, excellent conduction durability and excellent production efficiency; and a method for producing the material are provided. The method includes: a coating step wherein a coating layer that contains carbon and a binder compound containing a carbon atom and an oxygen atom is formed on the surface of a titanium base of titanium or a titanium alloy with a thickness of 40-200 ?m; and a heat treatment step treating the titanium base covered with the coating layer. The titanium base covered with the coating layer is wound into a coil shape and then subjected to the heat treatment carried out in a vacuum atmosphere of 10 Pa or less. A carbon layer and an intermediate layer containing titanium carbide are formed from the coating layer in the heat treatment step.
    Type: Application
    Filed: January 22, 2014
    Publication date: November 12, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Satoru TAKADA, Jun SUZUKI, Toshiki SATO
  • Publication number: 20150231859
    Abstract: An aluminum-alloy plate (10) equipped with an aluminum-alloy substrate (1) and an aluminum-oxide film (2) formed on the surface of the aluminum-alloy substrate (1), wherein: the aluminum-oxide film (2) contains at least one type of additional element having a P-B ratio of 1.00 or more, zirconium in the amount of 0.01-10 atomic percent, and magnesium in the amount of 0.1 or more and less than 10 atomic percent; and the total amount of additional elements contained in the aluminum-oxide film (2) is 0.010-5.0 atomic percent. As a result, it is possible to provide: an aluminum-alloy plate which exhibits excellent post-degreasing-water-wettability stability even when in a high-temperature, high-humidity environment; and a joined body and a vehicle member which use the same.
    Type: Application
    Filed: September 5, 2013
    Publication date: August 20, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Akihiko Tatsumi, Satoru Takada