Patents by Inventor Katsuhiro Takami

Katsuhiro Takami 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).

  • Publication number: 20200408600
    Abstract: A method for inspecting a heatsink in which a heat dissipation layer is formed on a surface of a substrate formed by casting, includes shooting the heat dissipation layer by image pickup means in a state where residual heat transferred from the substrate to the heat dissipation layer remains and thereby acquiring image data representing a temperature distribution on a surface of the heat dissipation layer, the heat dissipation layer being formed by performing a film-forming process on the surface of the substrate where residual heat that is generated when the substrate is cast remains, the image pickup means being configured to receive an emission of light from molecules of the heat dissipation layer.
    Type: Application
    Filed: September 16, 2020
    Publication date: December 31, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Egawa, Katsuhiro Takami
  • Patent number: 10596618
    Abstract: Provided is a method for producing a heat sink that can easily and effectively form a heat radiating film on the surface of a substrate without requiring enormous heat energy for increasing the temperature of the substrate. The method is a method for producing a heat sink having a substrate and a heat radiating film formed on the surface of the substrate, including a first step of casting a substrate by injecting molten metal into a cavity of molding dies; and a second step of applying a heat radiating coating to the substrate through spraying or dropping in the period from when the molding dies are opened after the casting until when the temperature of the substrate that has been cast becomes lower than the deposition temperature that is a temperature necessary to deposit the heat radiating coating on the substrate.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 24, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC International Co., Ltd.
    Inventors: Naoaki Sugiura, Yuichi Furukawa, Mitsuhiro Kobayashi, Fumio Kawahara, Katsuhiro Takami
  • Patent number: 10543526
    Abstract: A deburring method for a casting sand core 40 for removing burrs from a deburring target part 41 in the casting sand core 40 including the deburring target part 41, the deburring target part 41 being at least one of an opening and a cut-out part. The deburring method includes: inserting a bag 13 into the deburring target part 41 of the casting sand core 40; and inflating the bag 13 inserted into the deburring target part 41, and thereby pressing and breaking off burrs 42 formed on a peripheral surface of the deburring target part 41 by the inflated bag 13.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: January 28, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoya Era, Katsuhiro Takami
  • Patent number: 10393509
    Abstract: A pattern height measurement device capable of high-precision measurement of the dimensions of a fine pattern, and a charged particle beam device are provided. The pattern height measurement device includes a calculation device that determines dimensions of a sample, in the height direction, based on first reflected light information obtained by dispersing light reflected from a sample. The calculation device determines second reflected light information based on a formula for the relationship between the value for the dimension in the sample surface direction of a pattern formed upon the sample, obtained by irradiation of a charged particle beam on the sample, the value for the dimension in the height direction of the sample, and reflected light information; compares a second reflected light intensity and the first reflected light information; and outputs the value for the dimension in the height direction of the sample in the second reflected light information.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 27, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroki Kawada, Katsuhiro Sasada, Takenori Hirose, Shou Takami
  • Publication number: 20190212197
    Abstract: A method for inspecting a heatsink in which a heat dissipation layer is formed on a surface of a substrate formed by casting, includes shooting the heat dissipation layer by image pickup means in a state where residual heat transferred from the substrate to the heat dissipation layer remains and thereby acquiring image data representing a temperature distribution on a surface of the heat dissipation layer, the heat dissipation layer being formed by performing a film-forming process on the surface of the substrate where residual heat that is generated when the substrate is cast remains, the image pickup means being configured to receive an emission of light from molecules of the heat dissipation layer.
    Type: Application
    Filed: December 6, 2018
    Publication date: July 11, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta EGAWA, Katsuhiro TAKAMI
  • Publication number: 20190193143
    Abstract: A deburring method for a casting sand core 40 for removing burrs from a deburring target part 41 in the casting sand core 40 including the deburring target part 41, the deburring target part 41 being at least one of an opening and a cut-out part. The deburring method includes: inserting a bag 13 into the deburring target part 41 of the casting sand core 40; and inflating the bag 13 inserted into the deburring target part 41, and thereby pressing and breaking off burrs 42 formed on a peripheral surface of the deburring target part 41 by the inflated bag 13.
    Type: Application
    Filed: November 26, 2018
    Publication date: June 27, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoya Era, Katsuhiro Takami
  • Publication number: 20180056363
    Abstract: Provided is a method for producing a heat sink that can easily and effectively form a heat radiating film on the surface of a substrate without requiring enormous heat energy for increasing the temperature of the substrate. The method is a method for producing a heat sink having a substrate and a heat radiating film formed on the surface of the substrate, including a first step of casting a substrate by injecting molten metal into a cavity of molding dies; and a second step of applying a heat radiating coating to the substrate through spraying or dropping in the period from when the molding dies are opened after the casting until when the temperature of the substrate that has been cast becomes lower than the deposition temperature that is a temperature necessary to deposit the heat radiating coating on the substrate.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC International Co., Ltd.
    Inventors: Naoaki SUGIURA, Yuichi FURUKAWA, Mitsuhiro KOBAYASHI, Fumio KAWAHARA, Katsuhiro TAKAMI
  • Patent number: 9644255
    Abstract: A surface treatment method for a metal material is provided which includes applying diluted sulfuric acid to a surface of the metal material that is composed primarily of iron, performing a heat treatment on the metal material in the presence of at least one of CO, CO2 and organic gas under nitriding conditions under which a nitrided layer is formed in a superficial layer of the metal material after the application of the diluted sulfuric acid to form a carbon film which includes at least one of carbon nanocoils, carbon nanotubes and carbon nanofilaments on a surface of the nitrided layer of the metal material.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 9, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SCHOOL FOUNDATION, MEC INTERNATIONAL CO. LTD.
    Inventors: Yuichi Furukawa, Masahiro Okumiya, Yoshiki Tsunekawa, Nao Kumemoto, Fumio Kawahara, Katsuhiro Takami
  • Publication number: 20140048182
    Abstract: A surface treatment method for a metal material is provided which includes applying diluted sulfuric acid to a surface of the metal material that is composed primarily of iron, performing a heat treatment on the metal material in the presence of at least one of CO, CO2 and organic gas under nitriding conditions under which a nitrided layer is formed in a superficial layer of the metal material after the application of the diluted sulfuric acid to form a carbon film which includes at least one of carbon nanocoils, carbon nanotubes and carbon nanofilaments on a surface of the nitrided layer of the metal material.
    Type: Application
    Filed: April 12, 2012
    Publication date: February 20, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC INTERNATIONAL CO. LTD., TOYOTA SCHOOL FOUNDATION
    Inventors: Yuichi Furukawa, Masahiro Okumiya, Yoshiki Tsunekawa, Nao Kumemoto, Fumio Kawahara, Katsuhiro Takami
  • Patent number: 5840086
    Abstract: An improved method for manufacturing a capacitor packaged by synthetic resin after welding an anode bar of a capacitor element with a lead terminal of a lead frame and electrically connecting a cathode of the capacitor element with another lead terminal of the lead frame, wherein the capacitor is assembled after measuring an inclination of the capacitor element in the horizontal/vertical direction after welding the anode bar of the capacitor element with the lead terminal and correcting the inclination of the capacitor element by pressing a portion of the lead terminal to which the anode bar is welded corresponding to the direction of the inclination when the inclination exceeds a predetermined value. As a result, no stress is applied to the capacitor element itself, so that no element is rendered defective or no element characteristic is damaged.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: November 24, 1998
    Assignee: Rohm Co., Ltd.
    Inventors: Katsuhiro Takami, Nobutoshi Kodama
  • Patent number: 4945398
    Abstract: An overcurrent preventive diode comprises a diode chip sandwiched between respective bonding ends of first and second leads. The bonding end of the first lead is directly bonded to the diode chip into electrical conduction while being also kept in heat conduction with the chip. The bonding end of the second lead is held in heat conduction with the diode chip via a thin electrical insulating layer. The bonding end of the second lead and the insulating layer are shaped to expose an electrical connecting portion of the chip, thereby enabling the second lead bonding end to be electrically connected to the chip through a fusing wire which is designed to be melt-cut upon passage of a predetermined overcurrent.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 31, 1990
    Assignee: Rohm Co., Ltd.
    Inventors: Yoshio Kurita, Katsuhiro Takami, Kenji Tanaka, Yuji Kosumi