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).

  • Publication number: 20110167865
    Abstract: An air-conditioning apparatus in which a labor required for system selection is simplified is provided.
    Type: Application
    Filed: October 29, 2008
    Publication date: July 14, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroyuki Morimoto, Kouji Yamashita, Takeshi Hatomura, Shinichi Wakamoto, Naofumi Takenaka, Yusuke Shimazu
  • Patent number: 7950230
    Abstract: A waste heat recovery apparatus including a Rankine cycle which includes a heater for heating an operation fluid by waste heat from a heat-generating device, an expansion unit for converting energy of expansion of the operation fluid flowing out from the heater into mechanical energy, and a condenser for condensing and liquefying the expanded operation fluid, a temperature detector for detecting the temperature of the operation fluid on the inlet side of the expansion unit, a pressure detector for detecting inlet-side pressure of the expansion unit, a pressure detector for detecting outlet-side pressure of the expansion unit, and a control unit. The control unit controls a command rotational speed of the expansion unit based on superheated degree information at the inlet of the expansion unit obtained from the operation fluid temperature and the inlet-side pressure, and pressure information in which the outlet-side pressure is considered.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: May 31, 2011
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Michio Nishikawa, Kouji Yamashita, Hiroshi Kishita, Keiichi Uno
  • Patent number: 7947347
    Abstract: The present invention provides a heat insulator that is extremely low in environmental load during production and recycling, is superior in handleability and workability, and shows favorable heat-insulating properties over an extended period of time. The present invention relates to vacuum heat insulator, comprising at least a core member and an external packaging member that stores the core member and can keep inside under reduced pressure, wherein the core member is a sheet-shaped fiber aggregate containing a polyester fiber having fiber size of 1 to 6 deniers in an amount of 50 wt % or more.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: May 24, 2011
    Assignee: Kurashiki Bosek Kabushiki Kaisha
    Inventors: Hiroyuki Takashima, Kouji Yamashita
  • Publication number: 20110043313
    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: October 29, 2010
    Publication date: February 24, 2011
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Publication number: 20110036104
    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: Application
    Filed: October 29, 2010
    Publication date: February 17, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masaki TOYOSHIMA, Kousuke Tanaka, Kouji Yamashita, Osamu Morimoto, Fumitake Unezaki
  • Publication number: 20110016897
    Abstract: There is provided a heat pump apparatus bringing heating water to a high temperature by connecting one or a plurality of load-side units to one heat source-side unit. The air conditioning-hot water supply combined system (heat pump apparatus) includes a heat source-side unit equipped with an air conditioning compressor, a four-way valve, and an outdoor heat exchanger; and the load-side units equipped with an air conditioning throttle, an indoor heat exchanger, a second compressor, a second load-side heat exchanger, and a second flow rate control unit. Here, a main circuit is configured by sequentially connecting the air conditioning compressor, the four-way valve, the outdoor heat exchanger, the air conditioning throttle, and the indoor heat exchanger, using a high-pressure side connection piping and a low-pressure side connection piping.
    Type: Application
    Filed: February 4, 2008
    Publication date: January 27, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoshi Akagi, Kouji Yamashita, Kousuke Tanaka, Junichi Kameyama, Hironori Yabuuchi
  • Patent number: 7856837
    Abstract: Air conditioning equipment that ensures sufficient noise reduction in the low frequency range of a few hundred hertz or below. The air conditioning equipment is characterized by including a heat exchanger for exchanging heat between air and refrigerant of a refrigeration cycle, a fan that supplies air to the heat exchanger, an air duct in which the fan is installed and through which acoustic waves are propagated, and a plurality of small holes that blows a jet into the air duct and sucks a jet from the air duct by a pressure difference between the blow side and the suction side of the fan.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: December 28, 2010
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Japan Aerospace Exploration Agency
    Inventors: Kouji Yamashita, Tsuyoshi Uchida, Tatsuya Ishii, Katsumi Takeda, Hideshi Oinuma, Kenichiro Nagai
  • Patent number: 7843298
    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: December 22, 2005
    Date of Patent: November 30, 2010
    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: 20100245192
    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: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicants: DENSO CORPORATION, Nippon Soken, Inc.
    Inventors: Yuuji Kakuya, Akira Takaoka, Hidenori Wada, Kouji Yamashita
  • Publication number: 20090126375
    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: Application
    Filed: May 30, 2006
    Publication date: May 21, 2009
    Inventors: Masaki Toyoshima, Kousuke Tanaka, Kouji Yamashita, Osamu Morimoto, Fumitake Unezaki
  • Publication number: 20090071156
    Abstract: A waste heat recovery apparatus including a Rankine cycle which includes a heater for heating an operation fluid by waste heat from a heat-generating device, an expansion unit for converting energy of expansion of the operation fluid flowing out from the heater into mechanical energy, and a condenser for condensing and liquefying the expanded operation fluid, a temperature detector for detecting the temperature of the operation fluid on the inlet side of the expansion unit, a pressure detector for detecting inlet-side pressure of the expansion unit, a pressure detector for detecting outlet-side pressure of the expansion unit, and a control unit. The control unit controls a command rotational speed of the expansion unit based on superheated degree information at the inlet of the expansion unit obtained from the operation fluid temperature and the inlet-side pressure, and pressure information in which the outlet-side pressure is considered.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 19, 2009
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Michio Nishikawa, Kouji Yamashita, Hiroshi Kishita, Keiichi Uno
  • Publication number: 20090042506
    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 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: Application
    Filed: July 31, 2008
    Publication date: February 12, 2009
    Inventors: Naoto Tani, Kouji Yamashita, Hayato Kamigashima, Nobuhiro Ichimura
  • Patent number: 7482762
    Abstract: A discharge lamp ballast is designed to limit or interrupt its AC output power to the discharge lamp upon occurrence of an abnormal discharge outside of an arc tube. A detector is included to examine a lamp voltage once in each of the positive and negative half-cycles or in each one complete cycle of the AC output power, and identifies the abnormal discharge when there is a particular change in the monitored lamp voltage. The particular change may be defined by a single logic or by combination of several logics each designed to represent specific characteristic for the abnormal discharges of several types.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: January 27, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kenichi Fukuda, Kouji Yamashita
  • Patent number: 7480454
    Abstract: Mobile equipment includes LEDs supplied with a current to emit red light, green light and blue light, FETs and a booster circuit for controlling the current supplied. The current supplied is controlled to supply all of the LED with a current of a low level to illuminate an object in a shooting mode with light for illumination. Thus in the shooting mode a white spot light illuminates the object, and the object can clearly be confirmed. At the moment of shooting, a current supplied can be increased at a burst to emit white flashlight to illuminate the object. A satisfactory image can thus be obtained. The source of light for illumination can be formed of miniature, light-weight LED, and does not impair in mobility mobile equipment having the source of light incorporated therein.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 20, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kouji Yamashita
  • Patent number: 7471183
    Abstract: There is provided a joint structure of a wound iron core in which iron core characteristics can be enhanced by improving the distribution of magnetic flux within an iron core. A wound iron core is formed to provide a joining structure or a butt joining structure and a lap joining structure disposed in an appropriate arrangement in which the a margin of overlapping is more increased as being closer to an outer periphery from an inner periphery of the iron core, taking a distribution of magnetic flux density within the iron core into consideration.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: December 30, 2008
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kouji Yamashita, Youji Matsuda, Kazuo Nishiyama, Masao Hosokawa, Kazuyuki Fukui, Hidemasa Yamaguchi, Tooru Honma, Hiroyuki Endou, Makoto Shinohara
  • Publication number: 20080095970
    Abstract: The present invention provides a heat insulator that is extremely low in environmental load during production and recycling, is superior in handleability and workability, and shows favorable heat-insulating properties over an extended period of time. The present invention relates to vacuum heat insulator, comprising at least a core member and an external packaging member that stores the core member and can keep inside under reduced pressure, wherein the core member is a sheet-shaped fiber aggregate containing a polyester fiber having fiber size of 1 to 6 deniers in an amount of 50 wt % or more.
    Type: Application
    Filed: July 19, 2005
    Publication date: April 24, 2008
    Inventors: Hiroyuki Takashima, Kouji Yamashita
  • Publication number: 20080036565
    Abstract: There is provided a joint structure of a wound iron core in which iron core characteristics can be enhanced by improving the distribution of magnetic flux within an iron core. A wound iron core is formed to provide a joining structure or a butt joining structure and a lap joining structure disposed in an appropriate arrangement in which the a margin of overlapping is more increased as being closer to an outer periphery from an inner periphery of the iron core, taking a distribution of magnetic flux density within the iron core into consideration.
    Type: Application
    Filed: October 10, 2007
    Publication date: February 14, 2008
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kouji Yamashita, Youji Matsuda, Kazuo Nishiyama, Masao Hosokawa, Kazuyuki Fukui, Hidemasa Yamaguchi, Tooru Honma, Hiroyuki Endou, Makoto Shinohara
  • Publication number: 20080009316
    Abstract: Mobile equipment includes LEDs supplied with a current to emit red light, green light and blue light, FETs and a booster circuit for controlling the current supplied. The current supplied is controlled to supply all of the LED with a current of a low level to illuminate an object in a shooting mode with light for illumination. Thus in the shooting mode a white spot light illuminates the object, and the object can clearly be confirmed. At the moment of shooting, a current supplied can be increased at a burst to emit white flashlight to illuminate the object. A satisfactory image can thus be obtained. The source of light for illumination can be formed of miniature, light-weight LED, and does not impair in mobility mobile equipment having the source of light incorporated therein.
    Type: Application
    Filed: August 27, 2007
    Publication date: January 10, 2008
    Inventor: Kouji Yamashita
  • Patent number: 7292127
    Abstract: There is provided a joint structure of a wound iron core in which iron core characteristics can be enhanced by improving the distribution of magnetic flux within an iron core. A wound iron core is formed to provide a joining structure or a butt joining structure and a lap joining structure disposed in an appropriate arrangement in which the a margin of overlapping is more increased as being closer to an outer periphery from an inner periphery of the iron core, taking a distribution of magnetic flux density within the iron core into consideration.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: November 6, 2007
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kouji Yamashita, Youji Matsuda, Kazuo Nishiyama, Masao Hosokawa, Kazuyuki Fukui, Hidemasu Yamaguchi, Tooru Honma, Hiroyuki Endou, Makoto Shinohara
  • Patent number: 7277630
    Abstract: Mobile equipment includes LEDs supplied with a current to emit red light, green light and blue light, FETs and a booster circuit for controlling the current supplied. The current supplied is controlled to supply all of the LED with a current of a low level to illuminate an object in a shooting mode with light for illumination. Thus in the shooting mode a white spot light illuminates the object, and the object can clearly be confirmed. At the moment of shooting, a current supplied can be increased at a burst to emit white flashlight to illuminate the object. A satisfactory image can thus be obtained. The source of light for illumination can be formed of miniature, light-weight LED, and does not impair in mobility mobile equipment having the source of light incorporated therein.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: October 2, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kouji Yamashita