Patents by Inventor Kouji Yamashita

Kouji Yamashita 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: 11935674
    Abstract: An object is to provide a laminated varistor excellent in clamping voltage ratio. Laminated varistor includes at least a pair of internal electrodes provided in varistor layer containing ZnO as a main component. Internal electrode contains Ag as a main component and is made of a metal containing at least one type selected from Pt and Au. The total weight of Pt and Au with respect to the weight of the metal constituting internal electrode is set between 2% and 30% (inclusive). With such a configuration, diffusion of Ag into varistor layer can be prevented, and a laminated varistor excellent in clamping voltage ratio can be obtained.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: March 19, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mikinori Amisawa, Masuto Omiya, Kouji Hirate, Yukihito Yamashita, Touichi Makita
  • Patent number: 10950907
    Abstract: A battery pack includes a plurality of battery cells, case (housing), circulation path, and blower. The circulation path includes battery paths, inflow side space, outflow side space, and a path along the housing. The battery paths are formed by gaps between adjacent battery cells. The inflow side space distributes fluid to the inlets of the battery paths. The outflow side space gathers fluid from the outlets of the battery paths. The path along the housing is a path that is different from the inflow side space and outflow side space and extends along one or more inner surfaces of the case. The circulation path is formed such that at least one of a flow velocity of the fluid in the inflow side space and a flow velocity of the fluid in the outflow side space is slower than a flow velocity of the fluid in the path along the housing.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: March 16, 2021
    Assignee: DENSO CORPORATION
    Inventors: Hiroyoshi Yamamoto, Yoshimitsu Inoue, Kouji Yamashita
  • Patent number: 10811739
    Abstract: A battery pack includes a plurality of batteries, a housing, a circulation path, and a blower. The circulation path includes a bottom wall side path formed between lower faces of the batteries and a bottom wall which is the bottom side of the housing. The bottom wall is provided with a plurality of beams arranged in parallel for reinforcing the housing, and the batteries are arranged on the beams. The bottom wall side path is formed as a space surrounded by the lower faces of the batteries, the bottom wall, and the beam. The width of the bottom wall side path formed between adjacent beams is set to be larger than the width of one beam.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 20, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kouji Yamashita, Yoshimitsu Inoue, Hiroyoshi Yamamoto
  • Publication number: 20180241104
    Abstract: A battery pack includes a plurality of batteries, a housing, a circulation path, and a blower. The circulation path includes a bottom wall side path formed between lower faces of the batteries and a bottom wall which is the bottom side of the housing. The bottom wall is provided with a plurality of beams arranged in parallel for reinforcing the housing, and the batteries are arranged on the beams. The bottom wall side path is formed as a space surrounded by the lower faces of the batteries, the bottom wall, and the beam. The width of the bottom wall side path formed between adjacent beams is set to be larger than the width of one beam.
    Type: Application
    Filed: August 2, 2016
    Publication date: August 23, 2018
    Applicant: DENSO CORPORATION
    Inventors: Kouji YAMASHITA, Yoshimitsu INOUE, Hiroyoshi YAMAMOTO
  • Publication number: 20180241106
    Abstract: A battery pack includes a plurality of battery cells, case (housing), circulation path, and blower. The circulation path includes battery paths, inflow side space, outflow side space, and a path along the housing. The battery paths are formed by gaps between adjacent battery cells. The inflow side space distributes fluid to the inlets of the battery paths. The outflow side space gathers fluid from the outlets of the battery paths. The path along the housing is a path that is different from the inflow side space and outflow side space and extends along one or more inner surfaces of the case. The circulation path is formed such that at least one of a flow velocity of the fluid in the inflow side space and a flow velocity of the fluid in the outflow side space is slower than a flow velocity of the fluid in the path along the housing.
    Type: Application
    Filed: August 1, 2016
    Publication date: August 23, 2018
    Applicant: DENSO CORPORATION
    Inventors: Hiroyoshi YAMAMOTO, Yoshimitsu INOUE, Kouji YAMASHITA
  • Patent number: 9890445
    Abstract: Provided are a steel for a mechanical structure for cold working, and a method for manufacturing the same, whereby softening and variations in hardness can be reduced even when a conventional spheroidizing annealing process is performed. A steel having a predetermined chemical composition, the total area ratio of pearlite and pro-eutectoid ferrite being at least 90 area % with respect to the total metallographic structure of the steel, the area ratio (A) of pro-eutectoid ferrite satisfying the relationship A>Ae with an Ae value expressed by a predetermined relational expression, the average equivalent circular diameter of bcc-Fe crystal grains being 15-35 ?m, and the average of the maximum grain diameter and the second largest grain diameter of the bcc-Fe crystal grains being 50 ?m or less in terms of equivalent circular diameter.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: February 13, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Kouji Yamashita, Takehiro Tsuchida, Masamichi Chiba
  • Patent number: 9353979
    Abstract: An air-conditioning apparatus in which entry of a refrigerant into a living space is suppressed and measures against refrigerant leakage are taken is provided.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: May 31, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroyuki Morimoto, Kouji Yamashita, Takeshi Hatomura, Shinichi Wakamoto, Naofumi Takenaka, Yusuke Shimazu
  • Patent number: 9103574
    Abstract: An air conditioner includes: a heat source-side unit having a compressor, a heat source-side heat exchanger, a first throttle device and a super-cooling heat exchanger; a load-side unit having a second throttle device and a load-side heat exchanger; a switching device for switching connections of discharge and intake sides of the compressor between the heat source-side unit and the load-side unit; a refrigerant reservoir supplying refrigerant and connected to a refrigerating cycle between the first throttle device of the heat source-side unit and the heat source-side heat exchanger through a refrigerant filling switch valve; and a controller controlling the switching device, the first throttle device, the second throttle device and refrigerant filling switch valve.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 11, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaki Toyoshima, Kousuke Tanaka, Kouji Yamashita, Osamu Morimoto, Fumitake Unezaki
  • Patent number: 8943849
    Abstract: An air-conditioning apparatus is provided with a heat-source device that supplies a refrigerant, a relay unit that exchanges heat of a heat medium such as water or anti-freezing fluid supplied from the heat-source device in an intermediate heat exchanger and supplies the heat medium, an indoor unit that exchanges heat between a use side heat exchanger through which the heat medium supplied from the relay unit flows and indoor air and performs cooling or heating in the indoor space, a controller that controls operations of the heat-source device, the relay unit and the indoor unit, and a third temperature sensor that detects the temperature of the heat medium flowing through the use side heat exchanger, and if an abnormality in at least one of the heat-source device and the relay unit is detected, the controller continues the operation of the indoor unit while the temperature detected by the third temperature sensor remains within a first predetermined temperature range.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: February 3, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shigeo Takata, Kouji Yamashita
  • Publication number: 20140326369
    Abstract: Provided are a steel for a mechanical structure for cold working, and a method for manufacturing the same, whereby softening and variations in hardness can be reduced even when a conventional spheroidizing annealing process is performed. A steel having a predetermined chemical composition, the total area ratio of pearlite and pro-eutectoid ferrite being at least 90 area % with respect to the total metallographic structure of the steel, the area ratio (A) of pro-eutectoid ferrite satisfying the relationship A>Ae with an Ae value expressed by a predetermined relational expression, the average equivalent circular diameter of bcc-Fe crystal grains being 15-35 ?m, and the average of the maximum grain diameter and the second largest grain diameter of the bcc-Fe crystal grains being 50 ?m or less in terms of equivalent circular diameter.
    Type: Application
    Filed: December 11, 2012
    Publication date: November 6, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Kouji Yamashita, Takehiro Tsuchida, Masamichi Chiba
  • Patent number: 8766869
    Abstract: An antenna apparatus includes: a ground substrate; and a loop antenna having first and second polarized wave surfaces, which are perpendicular to the substrate. The substrate provides an antenna, which is excited and vibrated together with the loop antenna. The antenna has a first polarized wave component in parallel to the first polarized wave surface and a second polarized wave component in parallel to the second polarized wave surface. A polarized wave ratio between the first polarized wave component and the second polarized wave component in the substrate is substantially equal to a polarized wave ratio between the first polarized wave surface and the second polarized wave surface in the loop antenna.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 1, 2014
    Assignees: DENSO CORPORATION, Nippon Soken, Inc.
    Inventors: Yuuji Kakuya, Akira Takaoka, Hidenori Wada, Kouji Yamashita
  • Patent number: 8449359
    Abstract: A structure for connecting an air-conditioning duct to an air-conditioning unit; the air-conditioning unit 1 having a first air supply outlet 11 and a second air supply outlet 12 adjacent with each other, the air-conditioning duct having a first air passage and a second air passage adjacent with each other, wherein the first air supply outlet 11 and the second air supply outlet 12 include a U-shaped auxiliary wall 2 having a notched part K at one side therearound, a supply outlet boundary wall 130 separating the first air supply outlet 11 and the second air supply outlet 12, and a duct side step part Z is formed between an opening rim of a first duct 31 and an opening rim of a second duct 32, the duct side step part Z is contacted with is contacted with the supply outlet boundary wall 130 to install the air-conditioning duct 2 to the air-conditioning unit 1.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: May 28, 2013
    Assignees: Kyoraku Co., Ltd., Toyota Shatai Kabusiki Kaisha
    Inventors: Naoto Tani, Kouji Yamashita, Hayato Kamigashima, Nobuhiro Ichimura
  • Patent number: 8432244
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: April 30, 2013
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Publication number: 20120308863
    Abstract: A battery 1 has a wound body 4 accommodated in a cylindrical battery case 2. The wound body 4 includes an electrode group 6 wound around a core 10. The electrode group 6 includes a negative electrode plate 20, a positive electrode plate 30, and a separator 40. The core 10 is made of a flexible linear conductor, and functions as a negative electrode lead.
    Type: Application
    Filed: December 1, 2011
    Publication date: December 6, 2012
    Inventors: Kenjin Masumoto, Kouji Yamashita, Akira Kakinuma, Keisuke Yoneda
  • Publication number: 20120146754
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Inventors: Masao HOSOKAWA, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Patent number: 8143985
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 27, 2012
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Patent number: 8087258
    Abstract: An air conditioner is arranged so as to be able to accurately judge a refrigerant filling state within the air conditioner regardless of environmental and installation conditions.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: January 3, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Toyoshima, Kousuke Tanaka, Kouji Yamashita, Osamu Morimoto, Fumitake Unezaki
  • Publication number: 20110297363
    Abstract: An air-conditioning apparatus is provided with a heat-source device that supplies a refrigerant, a relay unit that exchanges heat of a heat medium such as water or anti-freezing fluid supplied from the heat-source device in an intermediate heat exchanger and supplies the heat medium, an indoor unit that exchanges heat between a use side heat exchanger through which the heat medium supplied from the relay unit flows and indoor air and performs cooling or heating in the indoor space, a controller that controls operations of the heat-source device, the relay unit and the indoor unit, and a third temperature sensor that detects the temperature of the heat medium flowing through the use side heat exchanger, and if an abnormality in at least one of the heat-source device and the relay unit is detected, the controller continues the operation of the indoor unit while the temperature detected by the third temperature sensor remains within a first predetermined temperature range.
    Type: Application
    Filed: March 23, 2009
    Publication date: December 8, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shigeo Takata, Kouji Yamashita
  • Publication number: 20110192189
    Abstract: An air-conditioning apparatus in which entry of a refrigerant into a living space is suppressed and measures against refrigerant leakage are taken is provided.
    Type: Application
    Filed: October 29, 2008
    Publication date: August 11, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Morimoto, Kouji Yamashita, Takeshi Hatomura, Shinichi Wakamoto, Naofumi Takenaka, Yusuke Shimazu
  • Patent number: 7987679
    Abstract: By studying or storing refrigerating cycle characteristics of an air conditioning apparatus at the normal time and comparing them with refrigerating cycle characteristics acquired from the air conditioning apparatus at the time of operation, it becomes possible to exactly and accurately diagnose normality or abnormality of the air conditioning apparatus under any installation conditions and environmental conditions, which eliminates operations of inputting a difference between apparatus model names, a piping length, a height difference, etc at the time of apparatus installation. Accordingly, it aims at shortening the time of judging normality or abnormality, and improving the operability.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: August 2, 2011
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kousuke Tanaka, Kouji Yamashita, Yasunori Shida, Masahumi Tomita