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).
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Patent number: 11802797Abstract: 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: GrantFiled: September 16, 2020Date of Patent: October 31, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta Egawa, Katsuhiro Takami
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Publication number: 20200408600Abstract: 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: ApplicationFiled: September 16, 2020Publication date: December 31, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta Egawa, Katsuhiro Takami
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Patent number: 10596618Abstract: 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: GrantFiled: August 23, 2017Date of Patent: March 24, 2020Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC International Co., Ltd.Inventors: Naoaki Sugiura, Yuichi Furukawa, Mitsuhiro Kobayashi, Fumio Kawahara, Katsuhiro Takami
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Patent number: 10543526Abstract: 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: GrantFiled: November 26, 2018Date of Patent: January 28, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoya Era, Katsuhiro Takami
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Publication number: 20190212197Abstract: 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: ApplicationFiled: December 6, 2018Publication date: July 11, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta EGAWA, Katsuhiro TAKAMI
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Publication number: 20190193143Abstract: 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: ApplicationFiled: November 26, 2018Publication date: June 27, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoya Era, Katsuhiro Takami
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Publication number: 20180056363Abstract: 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: ApplicationFiled: August 23, 2017Publication date: March 1, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC International Co., Ltd.Inventors: Naoaki SUGIURA, Yuichi FURUKAWA, Mitsuhiro KOBAYASHI, Fumio KAWAHARA, Katsuhiro TAKAMI
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Patent number: 9644255Abstract: 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: GrantFiled: April 12, 2012Date of Patent: May 9, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SCHOOL FOUNDATION, MEC INTERNATIONAL CO. LTD.Inventors: Yuichi Furukawa, Masahiro Okumiya, Yoshiki Tsunekawa, Nao Kumemoto, Fumio Kawahara, Katsuhiro Takami
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Publication number: 20140048182Abstract: 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: ApplicationFiled: April 12, 2012Publication date: February 20, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC INTERNATIONAL CO. LTD., TOYOTA SCHOOL FOUNDATIONInventors: Yuichi Furukawa, Masahiro Okumiya, Yoshiki Tsunekawa, Nao Kumemoto, Fumio Kawahara, Katsuhiro Takami
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Patent number: 5840086Abstract: 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: GrantFiled: April 4, 1996Date of Patent: November 24, 1998Assignee: Rohm Co., Ltd.Inventors: Katsuhiro Takami, Nobutoshi Kodama
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Patent number: 4945398Abstract: 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: GrantFiled: October 16, 1989Date of Patent: July 31, 1990Assignee: Rohm Co., Ltd.Inventors: Yoshio Kurita, Katsuhiro Takami, Kenji Tanaka, Yuji Kosumi