Patents by Inventor Kazunori Matsumoto

Kazunori Matsumoto 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: 20240072203
    Abstract: A method for fabricating light emitting diode (LED) dice includes the steps of: providing a substrate, and forming a plurality of die sized semiconductor structures on the substrate. The method also includes the steps of providing a receiving plate having an elastomeric polymer layer, placing the substrate and the receiving plate in physical contact with an adhesive force applied by the elastomeric polymer layer, and performing a laser lift-off (LLO) process by directing a uniform laser beam through the substrate to the semiconductor layer at an interface with the substrate to lift off the semiconductor structures onto the elastomeric polymer layer. During the laser lift-off (LLO) process the elastomeric polymer layer functions as a shock absorber to reduce momentum transfer, and as an adhesive surface to hold the semiconductor structures in place on the receiving plate.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicants: SemiLEDs Corporation, SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Chen-Fu Chu, Shih-Kai Chan, Yi-Feng Shih, David Trung Doan, Trung Tri Doan, Yoshinori Ogawa, Kohei Otake, Kazunori Kondo, Keiji Ohori, Taichi Kitagawa, Nobuaki Matsumoto, Toshiyuki Ozai, Shuhei Ueda
  • Patent number: 11914330
    Abstract: A timepiece including: a dial; a windshield glass having a plurality of curved surfaces that differ from each other in curvature; and a hand disposed between the dial and the windshield glass, wherein the windshield glass includes: a first curved surface having a first curvature and including a center of the windshield glass; a second curved surface disposed adjacent to the first curved surface and having a second curvature larger than the first curvature; and a third curved surface disposed adjacent to the second curved surface and having a third curvature larger than the second curvature, a thickness of the first curved surface and a thickness of the second curved surface are equal, and in plan view, a distal end of the hand is disposed on a center C side of the windshield glass with respect to a boundary between the second curved surface and the third curved surface.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 27, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koki Hayashi, Kenichiro Matsumoto, Kazunori Hoshino, Hiroshi Watanabe
  • Patent number: 10944336
    Abstract: A power conversion apparatus with an arm fuse melting detector for detecting an arm fuse melting from a ripple current without using a micro switch. The power conversion apparatus includes an inverter for driving a motor, an arm fuse provided in each of U-phase, V-phase, and W-phase arms of the inverter, and a first arm fuse melting detector to detect the arm fuse melting. The first arm fuse melting detector includes a DQ conversion circuit that converts the inverter output current into the D-axis/Q-axis current, an absolute value calculation circuit for calculating the absolute value from the output of the DQ conversion circuit, a ripple current calculator for calculating a ripple current from the difference between the maximum value and the minimum value of the absolute value for each cycle period T of the fundamental wave of the inverter output.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: March 9, 2021
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Yuki Sakai, Kazunori Matsumoto
  • Patent number: 10850340
    Abstract: In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: December 1, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshiaki Tanaka, Kazunori Matsumoto, Kimiya Sato, Akira Nakagawa, Hiroki Yuzawa, Hideki Ihara
  • Publication number: 20200161988
    Abstract: A power conversion apparatus with an arm fuse melting detector for detecting an arm fuse melting from a ripple current without using a micro switch. The power conversion apparatus includes an inverter for driving a motor, an arm fuse provided in each of U-phase, V-phase, and W-phase arms of the inverter, and a first arm fuse melting detector to detect the arm fuse melting. The first arm fuse melting detector includes a DQ conversion circuit that converts the inverter output current into the D-axis/Q-axis current, an absolute value calculation circuit for calculating the absolute value from the output of the DQ conversion circuit, a ripple current calculator for calculating a ripple current from the difference between the maximum value and the minimum value of the absolute value for each cycle period T of the fundamental wave of the inverter output.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Yuki SAKAI, Kazunori MATSUMOTO
  • Patent number: 10203680
    Abstract: An input/output device inputting and outputting information to an external device includes a control section for communicating with an external controller. Electric equipment for communicating with the input/output device includes an input/output assignment storing section for storing which port of an input circuit an input from the external device is assigned to, and which port of an output circuit an output is assigned to. The electric equipment also includes an electric-equipment-side input/output control section for operating a function of the electric equipment based on information from the control section, or transmitting, to the control section, the information indicating which port of the output circuit an output of the electric equipment is output to.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: February 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Ihara, Kazunori Matsumoto, Yoshiaki Tanaka, Kousuke Takemura
  • Patent number: 10179766
    Abstract: A thiol group-containing polymer represented by: HS—(R—Sr)n—R—SH wherein R is an organic group including a —O—CH2—O— bond and a branched alkylene group, n is an integer of from 1 to 200, r is an integer of from 1 to 5, an average value of r is 1.1 or more and lower than 1.8, and the thiol group-containing polymer is a liquid at room temperature and has a specific gravity at 23° C. of 1.20 to 1.27.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 15, 2019
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Publication number: 20180354048
    Abstract: In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Yoshiaki Tanaka, Kazunori Matsumoto, Kimiya Sato, Akira Nakagawa, Hiroki Yuzawa, Hideki Ihara
  • Publication number: 20180281096
    Abstract: An arc welding method of the present disclosure includes a teaching program creation step, a position detection step, and a welding step. In the position detection step subsequent to the teaching program creation step, a position detection program is executed with use of a welding torch having a servomotor. In the welding step subsequent to the position detection step, a welding program is executed with use of the welding torch. A gain of the servomotor that is used for position detection in the position detection step is higher than a gain of the servomotor that is used for welding in the welding step.
    Type: Application
    Filed: October 17, 2016
    Publication date: October 4, 2018
    Inventors: EIJI HONDA, TATSUYA IKEDA, TAKAMICHI KOMATSU, KAZUNORI MATSUMOTO
  • Patent number: 10058947
    Abstract: In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: August 28, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshiaki Tanaka, Kazunori Matsumoto, Kimiya Sato, Akira Nakagawa, Hiroki Yuzawa, Hideki Ihara
  • Publication number: 20180032912
    Abstract: A data processing method, includes: mapping each of a plurality of data, for which classes the data belong to are known, to one point on an N-dimensional feature space using at least two feature amounts; dividing a set of points corresponding to the plurality of data mapped on the feature space into a plurality of N-dimensional simplexes having each point as an apex; classifying a set of points that constitute a hyperplane of each simplex obtained by the division into a subset including points that belong to the same class as elements; and reducing the elements of the subsets for each of the classified subsets. The dividing includes dividing the set of points into the plurality of simplexes so a hypersphere circumscribed on each simplex does not include a point that constitutes another simplex.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 1, 2018
    Inventors: Kazunori Matsumoto, Keiichiro Hoashi
  • Patent number: 9738758
    Abstract: A method of producing a thiol group-containing polymer includes reacting bis(2-chloroethyl) formal with sodium hydrosulfide, wherein the thiol group-containing polymer is represented by general formula: HS—(R—Sr)n—R—SH where R is an organic group including a —C2H4—O—CH2—O—C2H4— structure, n is an integer of from 1 to 200, r is an integer of from 1 to 5, and the average value of r is 1.1 or more and lower than 1.8, and wherein the thiol group-containing polymer is a liquid polymer.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 22, 2017
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Publication number: 20170226055
    Abstract: A thiol group-containing polymer represented by: HS—(R—Sr)n—R—SH wherein R is an organic group including a —O—CH2—O— bond and a branched alkylene group, n is an integer of from 1 to 200, r is an integer of from 1 to 5, an average value of r is 1.1 or more and lower than 1.8, and the thiol group-containing polymer is a liquid at room temperature and has a specific gravity at 23° C. of 1.20 to 1.27.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Patent number: 9663619
    Abstract: A thiol group-containing polymer is represented by HS—(R—Sr)n—R—SH, wherein R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of from 1 to 200, r is an integer of from 1 to 5, and the average value of r is 1.1 or more and 1.8 or less. A curable composition using the thiol group-containing polymer can be used in sealants, adhesives, paints and the like, which require properties such as a low specific gravity, a low viscosity and a low glass transition temperature.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: May 30, 2017
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Patent number: 9662786
    Abstract: An industrial robot of the present disclosure includes a manipulator, a control device for controlling the manipulator, and a connection cable that connects the manipulator to the control device. The manipulator includes a fixed base section, a first motor, a first detecting section, a power supply section, a first casing, and a first power supply cable. The first motor operates the manipulator. The first detecting section detects the state of the first motor. The power supply section supplies electric power to the first detecting section. The first casing stores the first motor and the first detecting section. The first power supply cable connects the first detecting section to the power supply section. The power supply section is disposed in the base section.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 30, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Nagai, Kazunori Matsumoto, Wataru Takahashi
  • Publication number: 20170131699
    Abstract: An input/output device inputting and outputting information to an external device includes a control section for communicating with an external controller. Electric equipment for communicating with the input/output device includes an input/output assignment storing section for storing which port of an input circuit an input from the external device is assigned to, and which port of an output circuit an output is assigned to. The electric equipment also includes an electric-equipment-side input/output control section for operating a function of the electric equipment based on information from the control section, or transmitting, to the control section, the information indicating which port of the output circuit an output of the electric equipment is output to.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Inventors: Hideki IHARA, Kazunori MATSUMOTO, Yoshiaki TANAKA, Kousuke TAKEMURA
  • Publication number: 20170009019
    Abstract: A method of producing a thiol group-containing polymer includes reacting bis(2-chloroethyl) formal with sodium hydrosulfide, wherein the thiol group-containing polymer is represented by general formula: HS—(R—Sr)n—R—SH where R is an organic group including a —C2H4—O—CH2—O—C2H4— structure, n is an integer of from 1 to 200, r is an integer of from 1 to 5, and the average value of r is 1.1 or more and lower than 1.8, and wherein the thiol group-containing polymer is a liquid polymer.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Patent number: 9296890
    Abstract: The curable composition is a curable composition including a liquid polysulfide polymer containing 8% by weight or more of thiol groups in one molecule, an epoxy resin, and an amine, in which the liquid polysulfide polymer is HS—(R—Sx)n—R—SH wherein R is a two valent or three valent organic group containing a —O—CH2—O— bond, the average of n is less than 10, x is an integer of 1 to 5, and the average of x is 1 to 2.5.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: March 29, 2016
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Yasukazu Suga, Yukiko Hamada, Kazunori Matsumoto, Rika Umano
  • Publication number: 20150307664
    Abstract: A thiol group-containing polymer is represented by HS—(R—Sr)n—R—SH, wherein R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of from 1 to 200, r is an integer of from 1 to 5, and the average value of r is 1.1 or more and 1.8 or less. A curable composition using the thiol group-containing polymer can be used in sealants, adhesives, paints and the like, which require properties such as a low specific gravity, a low viscosity and a low glass transition temperature.
    Type: Application
    Filed: July 10, 2013
    Publication date: October 29, 2015
    Inventors: Koki Echigoya, Yukiko Hamada, Kazunori Matsumoto
  • Publication number: 20150096401
    Abstract: An industrial robot of the present disclosure includes a manipulator, a control device for controlling the manipulator, and a connection cable that connects the manipulator to the control device. The manipulator includes a fixed base section, a first motor, a first detecting section, a power supply section, a first casing, and a first power supply cable. The first motor operates the manipulator. The first detecting section detects the state of the first motor. The power supply section supplies electric power to the first detecting section. The first casing stores the first motor and the first detecting section. The first power supply cable connects the first detecting section to the power supply section. The power supply section is disposed in the base section.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: TAKASHI NAGAI, KAZUNORI MATSUMOTO, WATARU TAKAHASHI