Patents by Inventor Keizo Harada

Keizo Harada 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: 11900905
    Abstract: A signal output device comprising a housing, a fastener that attaches the housing to an object that includes a portion to be struck, an arm section attached to the housing, an extension section extending from the arm section and configured to contact the portion to be struck, a first sensor that detects vibration transmitted to the arm section and outputs a vibration signal representing the vibration, a second sensor provided on the housing and that detects vibration transmitted to the housing, and an output terminal that outputs the vibration detected by at least one of the first sensor or the second sensor.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: February 13, 2024
    Assignee: YAMAHA CORPORATION
    Inventor: Keizo Harada
  • Patent number: 11790879
    Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: October 17, 2023
    Assignee: YAMAHA CORPORATION
    Inventors: Keizo Harada, Kazuo Masaki, Emi Tanabe
  • Publication number: 20210256946
    Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 19, 2021
    Inventors: Keizo HARADA, Kazuo MASAKI, Emi TANABE
  • Publication number: 20200365128
    Abstract: A signal output device comprising a housing, a fastener that attaches the housing to an object that includes a portion to be struck, an arm section attached to the housing, an extension section extending from the arm section and configured to contact the portion to be struck, a first sensor that detects vibration transmitted to the arm section and outputs a vibration signal representing the vibration, a second sensor provided on the housing and that detects vibration transmitted to the housing, and an output terminal that outputs the vibration detected by at least one of the first sensor or the second sensor.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Inventor: Keizo HARADA
  • Patent number: 10192534
    Abstract: A percussion instrument is provided that includes a shell, a head and a speaker. The shell has a wall portion and at least one opening. The head is attached to the shell and overlies the at least one opening of the shell. The speaker is provided inside of the shell and oriented to output sound having a main direction of propagation towards the wall portion of the shell and/or the at least one opening of the shell having the head according to an input signal.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: January 29, 2019
    Assignee: YAMAHA CORPORATION
    Inventors: Takuto Yudasaka, Masakazu Kato, Keizo Harada
  • Patent number: 10187714
    Abstract: A sound pickup device includes: a housing; a mount portion via which the housing on an object constituting a portion of a musical instrument; a sound pickup including a plurality of the microphones respectively oriented in different directions; a first output configured to output a sound signal indicating a sound input to the sound pickup; and an installer configured to install the sound pickup on the housing such that each of the plurality of microphones is oriented away from the object when the housing is mounted on the object via the mount portion.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 22, 2019
    Assignee: YAMAHA CORPORATION
    Inventors: Hideaki Takehisa, Nobuhiro Nambu, Masamichi Yano, Keizo Harada
  • Patent number: 10171901
    Abstract: A sound pickup device includes: a housing; a mount portion via which the housing is mounted on an object; a sound pickup including a microphone; a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing; a sensor configured to detect a vibration transmitted to the housing; and a second output configured to output a vibration signal indicating the vibration detected by the sensor.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 1, 2019
    Assignee: YAMAHA CORPORATION
    Inventors: Hideaki Takehisa, Nobuhiro Nambu, Masamichi Yano, Keizo Harada
  • Publication number: 20180330701
    Abstract: A percussion instrument is provided that includes a shell, a head and a speaker. The shell has a wall portion and at least one opening. The head is attached to the shell and overlies the at least one opening of the shell. The speaker is provided inside of the shell and oriented to output sound having a main direction of propagation towards the wall portion of the shell and/or the at least one opening of the shell having the head according to an input signal.
    Type: Application
    Filed: April 13, 2018
    Publication date: November 15, 2018
    Inventors: Takuto YUDASAKA, Masakazu KATO, Keizo HARADA
  • Publication number: 20170311066
    Abstract: A sound pickup device includes: a housing; a mount portion via which the housing is mounted on an object; a sound pickup including a microphone; a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing; a sensor configured to detect a vibration transmitted to the housing; and a second output configured to output a vibration signal indicating the vibration detected by the sensor.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 26, 2017
    Inventors: Hideaki TAKEHISA, Nobuhiro NAMBU, Masamichi YANO, Keizo HARADA
  • Publication number: 20170311065
    Abstract: A sound pickup device includes: a housing; a mount portion via which the housing on an object constituting a portion of a musical instrument; a sound pickup including a plurality of the microphones respectively oriented in different directions; a first output configured to output a sound signal indicating a sound input to the sound pickup; and an installer configured to install the sound pickup on the housing such that each of the plurality of microphones is oriented away from the object when the housing is mounted on the object via the mount portion.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 26, 2017
    Inventors: Hideaki TAKEHISA, Nobuhiro NAMBU, Masamichi YANO, Keizo HARADA
  • Publication number: 20140234725
    Abstract: Provided is a method for producing a nonaqueous-electrolyte battery. A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer 13 that is amorphous and formed by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer 23 that is amorphous and formed by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 are in contact with each other, to a heat treatment under application of a pressure to crystallize the solid-electrolyte layers 13 and 23.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 21, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Mitsuyasu Ogawa, Kazuhiro Goto, Kentaro Yoshida, Takashi Uemura, Ryoko Kanda, Keizo Harada
  • Patent number: 8521415
    Abstract: A traveling vehicle includes an obstacle sensor; a controller which causes the traveling vehicle to perform a first avoidance operation so as to avoid an obstacle according to a result of the detection of the obstacle; a memory unit configured to store position information indicating a position of the obstacle in a traveling path and avoidance amount information indicating an amount of avoidance in a lateral direction performed by the traveling vehicle in the first avoidance operation; wherein, when the obstacle sensor detects an obstacle at the position indicated by the position information at a point when the obstacle is within a first distance from the traveling vehicle, the controller causes the traveling vehicle to start a second avoidance operation, before the distance from the traveling vehicle to the obstacle reaches a second distance, so as to avoid the obstacle based on the avoidance amount information stored in the memory unit.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: August 27, 2013
    Assignee: Murata Machinery, Ltd.
    Inventor: Keizo Harada
  • Patent number: 8148617
    Abstract: A drum pad capable of providing an excellent percussion feeling and securely adhering a base portion to a body portion made of rubber. The drum pad has a rear-side clothlike material which is provided on a rear surface of the body portion and into which the rubber of the body portion is impregnated. The base portion is fixed to a rear surface of the rear-side clothlike material via a fixing layer made of pressure sensitive adhesive or adhesive and provided on the rear surface of the rear-side clothlike material.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 3, 2012
    Assignee: Yamaha Corporation
    Inventors: Ryuji Hashimoto, Shuichi Sawada, Kenichi Nishida, Keizo Harada
  • Publication number: 20120053827
    Abstract: A traveling vehicle includes an obstacle sensor; a controller which causes the traveling vehicle to perform a first avoidance operation so as to avoid an obstacle according to a result of the detection of the obstacle; a memory unit configured to store position information indicating a position of the obstacle in a traveling path and avoidance amount information indicating an amount of avoidance in a lateral direction performed by the traveling vehicle in the first avoidance operation; wherein, when the obstacle sensor detects an obstacle at the position indicated by the position information at a point when the obstacle is within a first distance from the traveling vehicle, the controller causes the traveling vehicle to start a second avoidance operation, before the distance from the traveling vehicle to the obstacle reaches a second distance, so as to avoid the obstacle based on the avoidance amount information stored in the memory unit.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 1, 2012
    Applicant: MURATA MACHINERY, LTD.
    Inventor: Keizo HARADA
  • Patent number: 7998621
    Abstract: A battery electrode substrate includes a metallic porous body. The metallic porous body has a structure in which a surface of a plastic fiber in a woven or unwoven fabric is coated with a nickel film. The nickel film coats the surface with an average coverage ratio of not less than 85%.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: August 16, 2011
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Toyama Co., Ltd.
    Inventors: Keizo Harada, Masahiro Kato, Hidetoshi Saito, Tadashi Omura, Hitoshi Tsuchida
  • Publication number: 20100282048
    Abstract: A drum pad capable of providing an excellent percussion feeling and securely adhering a base portion to a body portion made of rubber. The drum pad has a rear-side clothlike material which is provided on a rear surface of the body portion and into which the rubber of the body portion is impregnated. The base portion is fixed to a rear surface of the rear-side clothlike material via a fixing layer made of pressure sensitive adhesive or adhesive and provided on the rear surface of the rear-side clothlike material.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 11, 2010
    Applicant: Yamaha Corporation
    Inventors: Ryuji HASHIMOTO, Shuichi Sawada, Kenichi Nishida, Keizo Harada
  • Patent number: 7588861
    Abstract: A method of producing an electrode includes the steps of filling an active material in an electrode substrate made of woven or non-woven fabric having its fiber surface coated with metal, and pressing the electrode substrate to obtain an electrode, wherein the pressing is performed using the electrode substrate having a thickness of less than 2.0 t when the thickness of the electrode after the pressing is t. This ensues that the electrode substrate has a thickness allowing the active material of a sufficient amount to be filled therein, and a battery electrode in which the filled active material is unlikely to peel off from the electrode substrate can be produced. Accordingly, a battery electrode having a desired thickness and desired capacity and that can suppress degradation in battery performance due to repeated charge and discharge, and its producing method are provided.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: September 15, 2009
    Assignees: Sumitomo Electric Industries, Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Kazuki Okuno, Keizo Harada, Masahiro Kato, Tetsuo Sakai, Tsutomu Iwaki, Masaru Yao
  • Publication number: 20070207388
    Abstract: A method of producing an electrode includes the steps of filling an active material in an electrode substrate made of woven or non-woven fabric having its fiber surface coated with metal, and pressing the electrode substrate to obtain an electrode, wherein the pressing is performed using the electrode substrate having a thickness of less than 2.0 t when the thickness of the electrode after the pressing is t. This ensues that the electrode substrate has a thickness allowing the active material of a sufficient amount to be filled therein, and a battery electrode in which the filled active material is unlikely to peel off from the electrode substrate can be produced. Accordingly, a battery electrode having a desired thickness and desired capacity and that can suppress degradation in battery performance due to repeated charge and discharge, and its producing method are provided.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventors: Kazuki Okuno, Keizo Harada, Masahiro Kato, Tetsuo Sakai, Tsutomu Iwaki, Masaru Yao
  • Publication number: 20060159998
    Abstract: A collector that has enough hardness and flexibility and a battery electrode substrate that uses this collector are provided. Also provided is a low-cost battery electrode substrate that exhibits excellent high-rate charge/discharge characteristics and low electrical resistance and that is able to avoid the decline in cycle characteristics caused by repetitive charging/discharging. The invention is a battery electrode substrate having a structure in which a nickel film is coated on the surface of plastic fiber of a woven or unwoven fabric, wherein a metallic porous body in which the average coverage ratio by the nickel film is not less than 85% is used.
    Type: Application
    Filed: January 10, 2006
    Publication date: July 20, 2006
    Inventors: Keizo Harada, Masahiro Kato, Hidetoshi Saito, Tadashi Omura, Hitoshi Tsuchida
  • Publication number: 20050112353
    Abstract: A porous member is proposed which can be used as a gas diffusion electrode/separator of a proton exchange membrane fuel cell, is inexpensive and has superior long-term reliability, has low voltage loss when used as an electrode, and makes it possible to improve the power generating performance of the fuel cell and stabilize the power generating performance for a long time. A metallic porous body having a three-dimensional network structure and having an average pore diameter of 50 ?m-1 mm and a porosity of not less than 80% is joined to a metal substrate such as metal foil by solid phase diffusion treatment to form an integral porous member.
    Type: Application
    Filed: March 11, 2004
    Publication date: May 26, 2005
    Inventors: Keizo Harada, Seiji Sano, Takashi Kajiwara, Takayoshi Shiraishi