Patents by Inventor Yasuhiro Hayakawa

Yasuhiro Hayakawa 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: 20240112860
    Abstract: An electronic component includes: a first internal electrode which is provided inside an element body and is drawn on a first main surface corresponding to a mounting surface; a second internal electrode which is provided inside the element body, is provided at a position different from the first internal electrode when viewed from a third direction, and is drawn on the first main surface; a third internal electrode which is provided inside the element body, is provided at a position facing the first internal electrode and the second internal electrode in the third direction, and is drawn on the first main surface; wherein the first internal electrode and the third internal electrode face each other in the third direction to form a first capacitor portion, and wherein the second internal electrode and the third internal electrode face each other in the third direction to form a second capacitor portion.
    Type: Application
    Filed: September 12, 2023
    Publication date: April 4, 2024
    Applicant: TDK CORPORATION
    Inventors: Naoki HAYAKAWA, Yoshitaka NAGASHIMA, Yasuhiro OKUI, Shinya SAITO, Yasuo WATANABE
  • Publication number: 20090290340
    Abstract: A lighting device with a plurality of light-emitting elements such as light-emitting diodes disposed in an in-line configuration at regular interval on a base plate; and a plurality of reflectors attached to the base plate, the plurality of reflectors being so formed as to cover each of the light-emitting diodes with mixed reflecting surfaces structured by reflecting surfaces which are planar except their lower portions, the planar reflecting surfaces being perpendicular to in-line direction of the light-emitting elements such as diodes, and other side surfaces which are able to mix reflected lights from the light-emitting elements; therefore, the present invention provides economical lighting devices which can illuminate relatively wide area nearly evenly by effectively mixing the lights from the light-emitting elements such as light-emitting diodes, and further which can be used like conventional electric lamps and fluorescent lights.
    Type: Application
    Filed: February 7, 2008
    Publication date: November 26, 2009
    Applicant: SHOWA DENKO K.K.
    Inventor: Yasuhiro Hayakawa
  • Patent number: 6931334
    Abstract: An electromagnetic field intensity calculation apparatus calculates a virtual current vector from a voltage vector and a mutual immittance matrix of an object including a wave source where a wave source power is applied. The voltage vector and the mutual immittance use a wave voltage of the wave source as a unit voltage. The apparatus also calculates an input impedance of the wave source based on a virtual wave source current of the virtual current vector and a unit voltage of the wave source, and calculates the wave source voltage based on the input impedance and the wave source power. The apparatus further calculates a current vector based on the wave source voltage calculated and the virtual current vector, and calculates an electromagnetic field intensity around the wave source which is determined based on the current vector.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 16, 2005
    Assignees: Fujitsu Limited, Fujitsu Ten Limited
    Inventors: Hiroshi Yoshida, Masamichi Ohtake, Yasuhiro Hayakawa, Yasuo Matsubara, Kenji Nagase, Takashi Yamagajo
  • Publication number: 20040204877
    Abstract: An electromagnetic field intensity calculation apparatus calculates a virtual current vector from a voltage vector and a mutual immittance matrix of an object including a wave source where a wave source power is applied. The voltage vector and the mutual immittance use a wave voltage of the wave source as a unit voltage. The apparatus also calculates an input impedance of the wave source based on a virtual wave source current of the virtual current vector and a unit voltage of the wave source, and calculates the wave source voltage based on the input impedance and the wave source power. The apparatus further calculates a current vector based on the wave source voltage calculated and the virtual current vector, and calculates an electromagnetic field intensity around the wave source which is determined based on the current vector.
    Type: Application
    Filed: January 27, 2004
    Publication date: October 14, 2004
    Applicants: Fujitsu Limited, Fujitsu Ten Limited
    Inventors: Hiroshi Yoshida, Masamichi Ohtake, Yasuhiro Hayakawa, Yasuo Matsubara, Kenji Nagase, Takashi Yamagajo
  • Patent number: 6390888
    Abstract: A grinder pressing device, wherein either the bottom part of a cylinder main body (10) of an air cylinder (1) in a vertical posture or a piston rod (11) is fixed to a fixed plate (2) and the other one is fixed to a movable plate (3) disposed under the fixed plate (2), either a guide table (G2) or a guide (G1) is mounted on the movable table (3) and the other one is mounted on the outer peripheral surface of the cylinder main body (20) and the guide plate (G2) is guided on the guide (G1) in a vertical direction under the rolling frictional condition through balls and, in the air cylinder (1), a coefficient of friction between the outer peripheral walls of a piston (12) and the piston rod (11) and the structural wall of the cylinder main body (10) is set lower by a metal seal so as to support the piston rod (11) by a ball bush movably in forward and backward directions over an extensive distance, a grinder (G) being mounted on the movable plate (3) and air pressures in upper and lower cylinder chambers (13 and
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 21, 2002
    Assignees: Nitta Corporation
    Inventors: Yuji Amano, Yasuhiro Hayakawa
  • Patent number: 5215028
    Abstract: A floating structure which comprises (a) a plurality of floats, each having a flat, polygonal or irregularly polygonal shape, with the upper and lower half parts staggered horizontally a given distance relative to each other, at least one edge forming an overhanging upper extension and the opposite edge a steplike lower extension, said upper and lower extensions being formed with connecting holes which, when the float is arranged to overlap with floats of the same construction in a mutually complementary manner, come in alignment with connecting holes of the lower and upper extensions of the neighboring floats so that said connecting pins are inserted through the aligned holes, and (b) connecting pins adapted to be fitted into the connecting holes formed in the floats.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: June 1, 1993
    Assignees: Tomoe Kogyo K.K., K.K. Rosso, Aoi Plastic K.K.
    Inventor: Yasuhiro Hayakawa
  • Patent number: D597705
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 4, 2009
    Assignee: Showa Denko K.K.
    Inventors: Kazuhiro Mitani, Yasuhiro Hayakawa