Patents by Inventor Kazuhiro Yoshikawa

Kazuhiro Yoshikawa 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: 10212814
    Abstract: An object of the present invention is to improve the laser drilling performance of a copper clad laminate whose black-oxide treated surface is used as a laser drilled surface. To achieve the object, a copper foil provided with a carrier foil 1 comprising a layer structure of the carrier foil 2/the releasing layer 3/the bulk copper layer 4 characterized in that metal element-containing particles 5 are disposed between the releasing layer 3 and the bulk copper layer 4 is employed. If the present copper foil provided with a carrier foil is used, a black-oxide treated layer having a color tone excellent in the laser drilling performance can be formed on the surface of the bulk copper layer in the copper clad laminate manufactured.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: February 19, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Kazuhiro Yoshikawa
  • Patent number: 10153092
    Abstract: A thin-film capacitor including a stacked body having a lower electrode layer, a plurality of dielectric layers stacked on the lower electrode layer, one or more internal electrode layers interposed between the dielectric layers, and an upper electrode layer that is stacked on the opposite side of the lower electrode layer with the dielectric layers and the internal electrode layers interposed between, and a cover layer that covers the stacked body. The stacked body includes opening portions that have the lower electrode layer, opens upward in a stacking direction, and has a side surface formed to include an inclined surface. The cover layer is stacked on the inclined surface of the stacked body. A curved surface with a predetermined shape is formed on the inclined surface for each pair of layers including the dielectric layer forming the inclined surface and the electrode layer, forming the inclined surface.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: December 11, 2018
    Assignee: TDK CORPORATION
    Inventors: Michihiro Kumagae, Akifumi Kamijima, Norihiko Matsuzaka, Junki Nakamoto, Kazuhiro Yoshikawa, Kenichi Yoshida
  • Publication number: 20180298962
    Abstract: A caliper body (12) of a disc brake apparatus (10) includes an accommodating portion (14a) which accommodates a piston (20) for pressing a brake pad (66), a cam lever (42) for generating a pressing force through rotation, and a pressing force transmission mechanism (24) which is interposed between the piston (20) and the cam lever (42) to transmit a pressing force to the piston (20). The accommodating portion (14a) has an opening portion through which the piston (20), the cam lever (42) and the pressing force transmission mechanism (24) can be assembled into the caliper body (12) from a thick back side thereof, and both the accommodating portion (14a) and the opening portion are opened to a rotor disposition side area in the caliper body (12).
    Type: Application
    Filed: April 20, 2016
    Publication date: October 18, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Kazuhiro YOSHIKAWA, Toshifumi MAEHARA
  • Publication number: 20180240599
    Abstract: In a thin-film capacitor, an electrode terminal layer is divided into a plurality of parts by a penetration portion, and includes a frame portion as one divided part. The frame portion is disposed along an outer edge of the electrode terminal layer when viewed from the bottom surface side of the electrode terminal layer, and the frame portion can hinder deformation of the electrode terminal layer stretching or warping in a thickness direction or an in-plane direction, whereby such deformation can be prevented. Accordingly, in the thin-film capacitor, the electrode terminal layer is not likely to be deformed and an improvement in strength thereof is achieved.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: TDK CORPORATION
    Inventors: Koichi TSUNODA, Mitsuhiro TOMIKAWA, Kazuhiro YOSHIKAWA, Kenichi YOSHIDA
  • Publication number: 20180233553
    Abstract: An electronic component embedded substrate includes: a substrate that includes an insulating layer and has a first principal surface and a second principal surface on the opposite side of the first principal surface; and an electronic component that is embedded in the substrate and has a plurality of first terminals provided close to the first principal surface, a plurality of second terminals provided close to the second principal surface, and a capacity part provided between the plurality of first terminals and the plurality of second terminals. The electronic component is configured such that at least a part of the second terminals is embedded in the insulating layer. An insulating member is provided between the neighboring second terminals to be in contact with both of the neighboring second terminals. The insulating member and the insulating layer are formed of materials whose thermal expansion coefficients are different from each other.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 16, 2018
    Applicant: TDK CORPORATION
    Inventors: Mitsuhiro TOMIKAWA, Koichi TSUNODA, Kazuhiro YOSHIKAWA, Kenichi YOSHIDA
  • Publication number: 20180235086
    Abstract: An electronic component embedded substrate includes: a substrate that includes an insulating layer and has a first principal surface and a second principal surface; an electronic component that is embedded in the substrate and has at least one first terminal, at least one second terminal, and a capacity part; at least one via conductor that are formed in the insulating layer and electrically connected to the second terminal; and an adhesion layer that is in contact with the second terminal on an end face of the second terminal which are close to the second principal surface. The electronic component is laminated with the insulating layer, and adhesion strength between the adhesion layer and the insulating layer is higher than that between the second terminal and the insulating layer.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 16, 2018
    Applicant: TDK CORPORATION
    Inventors: Mitsuhiro TOMIKAWA, Koichi TSUNODA, Kazuhiro YOSHIKAWA, Kenichi YOSHIDA
  • Publication number: 20180223923
    Abstract: A wedge cam brake executes a braking operation by causing proximal end portions of brake arms to press a pair of pad assemblies against both sides of a brake rotor so as to hold it therebetween by means of a cam action of a wedge cam which is caused to move to a braking position along the direction of a rotational axis of a ball screw which is screwed into a ball nut which is provided integrally with the wedge cam as a result of the ball screw being driven to rotate. The wedge cam includes a compression coil spring for pushing to bias the ball nut towards the braking position where the proximal end portions of the brake arms are expanded and a spring holding mechanism for holding the compression coil spring in a biasing force accumulating state.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toshifumi MAEHARA, Shogo MASHIMO, Kazuhiro YOSHIKAWA
  • Patent number: 10029180
    Abstract: A player character is caused to perform an action in accordance with an input. Action points that allow the player character to perform an action in a virtual world during a player turn are set, and a point is subtracted from the action points in accordance with the action of the player character during the player turn. The player turn is ended, and an opponent turn is started. Then, in causing the player character to perform an action, if the action points remain at a time of the end of the player turn, the player character is caused to automatically perform an action on a non-player character in the opponent turn.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 24, 2018
    Assignee: NINTENDO CO., LTD.
    Inventors: Hitoshi Yamagami, Kazuhiro Yoshikawa, Yuya Ishii, Susumu Ishihara
  • Publication number: 20180195564
    Abstract: A floating type disc brake device in which a body, a support and a cylinder unit are configured separately, and a first piston and a second piston are accommodated in the cylinder unit, wherein the cylinder unit is fixed to arm portions provided on both the rotation-in side and the rotation-out side of a rotor in the support via cylinder attachment portions disposed on the outer circumference side of the cylinder unit.
    Type: Application
    Filed: June 28, 2016
    Publication date: July 12, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Kazuhiro YOSHIKAWA, Kohei NOMA
  • Patent number: 9982731
    Abstract: A disc brake apparatus that holds brake pads (46) and is capable of holding a caliper body (30) in a part of the support is provided with a support in which pairs of torque receiving parts (16, 18) provided in both sides in a braking force tangential direction and connecting parts (20) respectively connecting together the torque receiving parts (16, 18) are provided in both sides in an axial-direction of a rotor. In the support, at least one of the torque receiving parts (16, 18) is capable of being divided. The support (12) includes an open part capable of inserting and removing the brake pads (46) in the braking force tangential direction by dividing the torque receiving parts.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 29, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toshifumi Maehara, Kazuhiro Yoshikawa
  • Publication number: 20180102218
    Abstract: A thin-film capacitor includes electrode layers stacked in a stacking direction; dielectric layers stacked between the electrode layers; an opening portion that includes a side surface penetrating at least a part of the electrode layers and at least a part of the dielectric layers in the stacking direction from a top side and a bottom surface exposing one of the electrode layers; and a wiring portion disposed in the opening portion to be separated from the side surface of the opening portion, and electrically connected to the electrode layer exposed from the bottom surface of the opening portion. The dielectric layer that is stacked immediately on the electrode layer exposed from the bottom surface of the opening portion among the dielectric layers includes an extension portion extending in the opening portion from the side surface of the opening portion to the wiring portion side.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 12, 2018
    Applicant: TDK CORPORATION
    Inventors: Kenichi YOSHIDA, Kazuhiro YOSHIKAWA, Michihiro KUMAGAE, Norihiko MATSUZAKA, Junki NAKAMOTO
  • Publication number: 20180102219
    Abstract: A thin-film capacitor including a stacked body having a lower electrode layer, a plurality of dielectric layers stacked on the lower electrode layer, one or more internal electrode layers interposed between the dielectric layers, and an upper electrode layer that is stacked on the opposite side of the lower electrode layer with the dielectric layers and the internal electrode layers interposed between, and a cover layer that covers the stacked body. The stacked body includes opening portions that have the lower electrode layer, opens upward in a stacking direction, and has a side surface formed to include an inclined surface. The cover layer is stacked on the inclined surface of the stacked body. A curved surface with a predetermined shape is formed on the inclined surface for each pair of layers including the dielectric layer forming the inclined surface and the electrode layer, forming the inclined surface.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 12, 2018
    Applicant: TDK CORPORATION
    Inventors: Michihiro KUMAGAE, Akifumi KAMIJIMA, Norihiko MATSUZAKA, Junki NAKAMOTO, Kazuhiro YOSHIKAWA, Kenichi YOSHIDA
  • Patent number: 9878244
    Abstract: A first player character or a second player character is caused to perform an action by operating the first player character or the second player character in accordance with an input, and a player character as an action target for performing an action corresponding to the input is switched. Further, a position and/or a direction of a virtual camera are set in accordance with a position and/or a direction, in a virtual world, of the player character set as the action target, and the position and/or the direction of the virtual camera are changed in accordance with the action of the player character. An image of the virtual world viewed from the virtual camera set for the player character as the action target is displayed on a display apparatus. Then, the action target can be switched to the second player character as during the operation on the first player character as the action target in the same player turn.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 30, 2018
    Assignee: NINTENDO CO., LTD.
    Inventors: Hitoshi Yamagami, Kazuhiro Yoshikawa, Yuya Ishii, Susumu Ishihara
  • Publication number: 20170343069
    Abstract: A disc brake apparatus structured such that, on receiving a pressing force from an operating spring, a piston arranged within a cylinder formed in a caliper body presses a piston side pad. The disc brake apparatus includes a support part formed in a part of the caliper body, a reaction force receiver provided on and projected from the lateral side of the piston and opposed to the support part, and cam parts interposed between the support part and the reaction force receiver and, on receiving a rotation force, capable of spreading the distance between the support part and the reaction force receiver to thereby release the pressing force.
    Type: Application
    Filed: December 16, 2015
    Publication date: November 30, 2017
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Kazuhiro YOSHIKAWA, Toshifumi MAEHARA
  • Publication number: 20170332967
    Abstract: A pad for electrodes (1) including a first conductive adhesive sheet (2) for connection with an electrode, a second conductive adhesive sheet (4) for connection with another electrode, the second conductive adhesive sheet positioned to be spaced apart from the first conductive adhesive sheet in a planar direction of each conductive adhesive sheet, and a base (10) supporting the first conductive adhesive sheet and the second conductive adhesive sheet. At least one surface of each of the first conductive adhesive sheet and the second conductive adhesive sheet is exposed, and each of the first conductive adhesive sheet and the second conductive adhesive sheet has a thickness compressibility of 10% or less and a thickness recovery ratio of 95% or more. The base is a non-electroconductive base having a water absorption capacity of 1 to 1.5 times, and the pad has a moisture permeability of 1,000 g/m2/24 h or more.
    Type: Application
    Filed: September 30, 2015
    Publication date: November 23, 2017
    Inventors: Takaaki HATORI, Yasuaki SHIOYAMA, Kazuhiro YOSHIKAWA
  • Patent number: 9751013
    Abstract: First, movement information that allows calculation of a movement of a first input device is sequentially obtained. During a time period in which at least one operation key is in a predetermined input state, a display image is enlarged or reduced in accordance with a change of the movement information. When it is determined that the predetermined input state is canceled, the enlarged or reduced display image is caused to return to its original magnification and an action of at least one first object in the display image is controlled.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 5, 2017
    Assignee: NINTENDO CO., LTD.
    Inventors: Kazuhiro Yoshikawa, Hitoshi Yamagami, Toshio Noguchi
  • Patent number: 9693458
    Abstract: A method for manufacturing a printed wiring board includes forming a resin layer on an interlayer layer such that the resin layer has first openings exposing circuits in central portion and second openings exposing circuits in peripheral portion of the interlayer layer, forming solder bumps on the circuits in the first openings, forming a plating resist over the bumps and resin layer such that the resist has openings having diameters greater than the second openings and exposing the second openings, forming a seed layer on the resist, in the openings and on the circuits through the second openings, applying electrolytic plating on the resist such that electrolytic plating fills the openings and forms a plated film on the resist and metal posts in the openings, etching the plating such that the plated film is removed and recesses are formed on end surfaces of the posts, and removing the resist.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: June 27, 2017
    Assignee: IBIDEN CO., LTD.
    Inventors: Kazuhiro Yoshikawa, Takashi Kariya
  • Patent number: 9676596
    Abstract: In an elevator refurbishing method in which a hydraulic elevator in which a hydraulic jack is installed in an equipment installation zone is refurbished into a machine-roomless elevator that uses a two-to-one (2:1) roping method, the equipment installation zone being a region inside a hoistway on either a left side or a right side of a car when viewed from directly above, at least one guide rail from a pair of counterweight guide rails is installed in the equipment installation zone while leaving the hydraulic jack in position, the hydraulic jack is removed from the hoistway, the hoisting machine is installed in a lower portion of the equipment installation zone using a space that is created by removal of the hydraulic jack, and a car return sheave and a counterweight return sheave are installed on an upper portion of the counterweight guide rails.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: June 13, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiro Yoshikawa, Hideki Miyahara, Kazuhiro Sasaki, Yoshinao Takahashi
  • Patent number: 9663868
    Abstract: An object of the present invention is to provide an electro-deposited copper-alloy foil excellent in infrared laser processability which enables uniform etching rate along a thickness direction in following etching process. To achieve the object, an electro-deposited copper-alloy foil obtained from electrolyzing of an electrolytic solution, wherein the electro-deposited copper-alloy foil has tin content of 8% by mass to 25% by mass is employed. In the electro-deposited copper-alloy foil, a grain in a crystal structure is preferably a columnar grain longitudinal along a thickness direction.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: May 30, 2017
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Mitsuyoshi Matsuda, Kazuhiro Yoshikawa, Takao Fujimoto
  • Patent number: 9578745
    Abstract: A method for manufacturing a printed wiring board includes forming a removable layer over first pads in central portion of an interlayer insulation layer to mount IC chip, forming on the interlayer and removable layers a resin insulation layer having openings exposing second pads in peripheral portion of the interlayer layer to connect second substrate, forming a seed layer on the resin layer, in the openings and on the second pads, forming on the seed layer a plating resist having resist openings exposing the openings of the resin layer with diameters greater than the openings, filling the resist openings with electrolytic plating such that metal posts are formed in the resist openings, removing the resist, removing the seed layer exposed on the resin layer, and removing the removable layer and the resin layer on the removable layer such that cavity exposing the first pads is formed in the resin layer.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 21, 2017
    Assignee: IBIDEN CO., LTD.
    Inventors: Kazuhiro Yoshikawa, Takashi Kariya