Patents by Inventor Takashi NOGAWA

Takashi NOGAWA 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: 11877513
    Abstract: This method is for manufacturing a thermoelectric conversion module in which a first conductive member, a thermoelectric conversion element, a second conductive member are joined by joining members, the method comprising: a step for, after applying on the first conductive member a first paste including metal particles, disposing the thermoelectric conversion element on the first paste, and compressing and spreading the first paste; a step for disposing the second conductive member, after applying a second paste including metal particles in a controlled amount, on the thermoelectric conversion element, and compressing and spreading the second paste; and a step for sintering the first and the second pastes to obtain joining members.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: January 16, 2024
    Assignee: Proterial, Ltd.
    Inventors: Tomotake Tohei, Takashi Nogawa, Nan Wang, Michiko Matsuda, Takeshi Shimada
  • Publication number: 20230302562
    Abstract: A copper-ceramic joint body having high joint strength is provided. The copper-ceramic joint body includes: a copper member made of Cu or Cu alloy; a ceramic member joined to the copper member and made of nitride of Si or Al; and a joint layer formed on joint surfaces of the copper member and the ceramic member, and containing Cu and Mg and further containing at least one type of active metal elements selected from a group of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Ca, Y, Ce, La, Sm, Yb, Nd, Gd and Er, and shear strength of the joint layer is equal to or higher than 10 MPa.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 28, 2023
    Inventors: Takashi NOGAWA, Shun TAKANO, Kenji OKISHIRO, Atsushi OKAMOTO
  • Publication number: 20220320413
    Abstract: This method is for manufacturing a thermoelectric conversion module in which a first conductive member, a thermoelectric conversion element, a second conductive member are joined by joining members, the method comprising: a step for, after applying on the first conductive member a first paste including metal particles, disposing the thermoelectric conversion element on the first paste, and compressing and spreading the first paste; a step for disposing the second conductive member, after applying a second paste including metal particles in a controlled amount, on the thermoelectric conversion element, and compressing and spreading the second paste; and a step for sintering the first and the second pastes to obtain joining members.
    Type: Application
    Filed: September 4, 2020
    Publication date: October 6, 2022
    Applicant: HITACHI METALS, LTD.
    Inventors: Tomotake TOHEI, Takashi NOGAWA, Nan WANG, Michiko MATSUDA, Takeshi SHIMADA
  • Patent number: 10177069
    Abstract: A heat-dissipating structure is formed by bonding a first member and a second member, each being any of a metal, ceramic, and semiconductor, via a die bonding member; or a semiconductor module formed by bonding a semiconductor chip, a metal wire, a ceramic insulating substrate, and a heat-dissipating base substrate including metal, with a die bonding member interposed between each. At least one of the die bonding members includes a lead-free low-melting-point glass composition and metal particles. The lead-free low-melting-point glass composition accounts for 78 mol % or more in terms of the total of the oxides V2O5, TeO2, and Ag2O serving as main ingredients. The content of each of TeO2 and Ag2O is 1 to 2 times the content of V2O5, and at least one of BaO, WO3, and P2O5 is included as accessory ingredients, and at least one of Y2O3, La2O3, and Al2O3 is included as additional ingredients.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 8, 2019
    Assignee: HITACHI LTD.
    Inventors: Takashi Naito, Motomune Kodama, Takuya Aoyagi, Shigeru Kikuchi, Takashi Nogawa, Mutsuhiro Mori, Eiichi Ide, Toshiaki Morita, Akitoyo Konno, Taigo Onodera, Tatsuya Miyake, Akihiro Miyauchi
  • Publication number: 20170236768
    Abstract: A heat-dissipating structure is formed by bonding a first member and a second member, each being any of a metal, ceramic, and semiconductor, via a die bonding member; or a semiconductor module formed by bonding a semiconductor chip, a metal wire, a ceramic insulating substrate, and a heat-dissipating base substrate including metal, with a die bonding member interposed between each. At least one of the die bonding members includes a lead-free low-melting-point glass composition and metal particles. The lead-free low-melting-point glass composition accounts for 78 mol % or more in terms of the total of the oxides V2O5, TeO2, and Ag2O serving as main ingredients. The content of each of TeO2 and Ag2O is 1 to 2 times the content of V2O5, and at least one of BaO, WO3, and P2O5 is included as accessory ingredients, and at least one of Y2O3, La2O3, and Al2O3 is included as additional ingredients.
    Type: Application
    Filed: September 9, 2015
    Publication date: August 17, 2017
    Applicant: HITACHI, LTD.
    Inventors: Takashi NAITO, Motomune KODAMA, Takuya AOYAGI, Shigeru KIKUCHI, Takashi NOGAWA, Mutsuhiro MORI, Eiichi IDE, Toshiaki MORITA, Akitoyo KONNO, Taigo ONODERA, Tatsuya MIYAKE, Akihiko MIYAUCHI