Patents by Inventor Taketoshi Toyoma

Taketoshi Toyoma 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).

  • High corrosion-resistant aluminum alloy brazing sheet, method of manufacturing such sheet, and corrosive-resistant heat exchanger using such sheet
    Patent number: 9999946
    Abstract: An aluminum alloy brazing sheet having a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and which has a superior corrosion resistance to an exhaust gas condensate water after the brazing process is disclosed. A method of manufacturing of the aluminum alloy brazing sheet also is disclosed. A high corrosion-resistant heat exchanger that employs the aluminum alloy brazing sheet also is disclosed.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: June 19, 2018
    Assignee: UACJ Corporation
    Inventors: Sadayuki Kamiya, Masaki Harada, Masafumi Saito, Taketoshi Toyoma, Makoto Ando, Yoshiyuki Oya, Akio Niikura, Yoichi Kojima
  • High Corrosion-Resistant Aluminum Alloy Brazing Sheet, Method of Manufacturing Such Sheet, and Corrosive-Resistant Heat Exchanger Using Such Sheet
    Publication number: 20160167177
    Abstract: Problem To provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet. Resolving Means A high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.
    Type: Application
    Filed: July 31, 2015
    Publication date: June 16, 2016
    Inventors: Sadayuki Kamiya, Masaki Harada, Masafumi Saito, Taketoshi Toyoma, Makoto Ando, Yoshiyuki Oya, Akio Niikura, Yoichi Kojima
  • High-corrosion-resistant aluminum alloy brazing sheet, method of manufacturing such sheet, and corrosive-resistant heat exchanger using such sheet
    Patent number: 9095934
    Abstract: An aluminum alloy brazing sheet having a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and which has a superior corrosion resistance to an exhaust gas condensate water after the brazing process is disclosed. A method of manufacturing of the aluminum alloy brazing sheet also is disclosed. A high corrosion-resistant heat exchanger that employs the aluminum alloy brazing sheet also is disclosed.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: August 4, 2015
    Assignees: Denso Corp., Furukawa-Sky Aluminum Corp.
    Inventors: Sadayuki Kamiya, Masaki Harada, Masafumi Saito, Taketoshi Toyoma, Makoto Ando, Yoshiyuki Oya, Akio Niikura, Yoichi Kojima
  • HIGH-CORROSION-RESISTANT ALUMINUM ALLOY BRAZING SHEET, METHOD OF MANUFACTURING SUCH SHEET, AND CORROSIVE-RESISTANT HEAT EXCHANGER USING SUCH SHEET
    Publication number: 20120279694
    Abstract: Problem To provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet. Resolving Means A high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.
    Type: Application
    Filed: September 15, 2010
    Publication date: November 8, 2012
    Applicant: DENSO CORPORATION
    Inventors: Sadayuki Kamiya, Masaki Harada, Masafumi Saito, Taketoshi Toyoma, Makoto Ando, Yoshiyuki Oya, Akio Niikura, Yoichi Kojima