Patents by Inventor Kazuya Sakaguchi

Kazuya Sakaguchi 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: 20240113189
    Abstract: An adjacent active trench in an IGBT region and an adjacent capacitance adjustment trench in a diode region are each provided in a stripe shape extending in a Y direction in a plan view. Each of a plurality of crossing trenches extends in an X direction orthogonal to the Y direction in a plan view and is provided in a stripe shape. Each of the plurality of crossing trenches is provided from the adjacent capacitance adjustment trench to the adjacent active trench in a plan view. Therefore, the gate electrode of the adjacent active trench and the capacitance adjustment electrode of the adjacent capacitance adjustment trench are electrically connected via the electrode for the crossing trench in the crossing trench.
    Type: Application
    Filed: July 14, 2023
    Publication date: April 4, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koichi NISHI, Kosuke SAKAGUCHI, Kazuya KONISHI
  • Patent number: 11834737
    Abstract: The titanium alloy coating film of the present invention is represented by (Ti1-aMoa)1-xNx, which satisfies 0.0423 a?0.32 and 0.40?x?0.60 and in which the film hardness thereof satisfies at least a condition of 3,000 HV or more; and the titanium alloy target material is represented by Ti1-aMoa, which satisfies 0.04?a?0.32, and in which, when an X-ray diffraction profile is measured on a surface of the target material, a diffraction peak intensity attributed to a single metal phase of Mo is not detected.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 5, 2023
    Assignee: DAIDO STEEL CO., LTD.
    Inventors: Hiromasa Takeda, Wataru Araki, Kazuya Sakaguchi, Katsuko Ofuji, Jun Totsuka, Kazuki Minami
  • Publication number: 20200308689
    Abstract: The titanium alloy coating film of the present invention is represented by (Ti1-aMoa)1-xNx, which satisfies 0.0423 a?0.32 and 0.40?x?0.60 and in which the film hardness thereof satisfies at least a condition of 3,000 HV or more; and the titanium alloy target material is represented by Ti1-aMoa, which satisfies 0.04?a?0.32, and in which, when an X-ray diffraction profile is measured on a surface of the target material, a diffraction peak intensity attributed to a single metal phase of Mo is not detected.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 1, 2020
    Applicant: Daido Steel Co., Ltd.
    Inventors: Hiromasa TAKEDA, Wataru ARAKI, Kazuya SAKAGUCHI, Katsuko OFUJI, Jun TOTSUKA, Kazuki MINAMI
  • Patent number: 9903981
    Abstract: The present invention relates to a laminated body containing at least (a) a transparent substrate, (b) a first metal layer that is overlaid on the substrate and forms an electrode, and (c) a second metal layer having a light reflectance of 20% or less, in which the second metal layer is overlaid on the surface of the first metal layer opposite to the substrate or between the first metal layer and the substrate by sputtering using a reactive sputtering gas, and the second metal layer is constituted by an oxide or nitride of a Cu alloy containing at least Zn.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: February 27, 2018
    Assignee: DAIDO STEEL CO., LTD.
    Inventors: Kazuki Minami, Yuichiro Tago, Kazuya Sakaguchi
  • Publication number: 20160116641
    Abstract: The present invention relates to a laminated body containing at least (a) a transparent substrate, (b) a first metal layer that is overlaid on the substrate and forms an electrode, and (c) a second metal layer having a light reflectance of 20% or less, in which the second metal layer is overlaid on the surface of the first metal layer opposite to the substrate or between the first metal layer and the substrate by sputtering using a reactive sputtering gas, and the second metal layer is constituted by an oxide or nitride of a Cu alloy containing at least Zn.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Applicant: DAIDO STEEL CO., LTD.
    Inventors: Kazuki MINAMI, Yuichiro TAGO, Kazuya SAKAGUCHI
  • Publication number: 20030165395
    Abstract: A manganese-based damping alloy having stable damping properties; a process by which the damping alloy can be obtained without fail; and a damping part or vibration-proof product comprising or employing the damping alloy. A damping alloy made up of from 16.9 to 27.7 wt% copper, from 2.1 to 8.2 wt% nickel, from 1.0 to 2.9 wt% iron, 0.05 wt% or less carbon, 0.06 wt% or less oxygen, 0.06 wt% or less nitrogen, and manganese and unavoidable impurities as the remainder. Due to this constitution, nonmetallic inclusions such as carbides generate in a reduced amount and the manganese-based alloy can be pure. Consequently, the formation of a twin-crystal structure during heat treatment is accelerated and factors which inhibit the twin-crystal structure from moving upon stress imposition are diminished, whereby damping properties can be improved.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 4, 2003
    Inventors: Sigenobu Sekiya, Kazuya Sakaguchi, Kenji Watanabe