Patents by Inventor Kazuo Yamagishi

Kazuo Yamagishi 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: 11760887
    Abstract: The titanium material includes a titanium oxide layer formed on a surface of titanium being a base material, the titanium oxide layer having a thickness measured by a glow discharge spectrometry of 60 to 300 nm, wherein: the titanium oxide layer contains 0.5 to 7.0 at % of nitrogen, and an arithmetic mean roughness Ra of a surface thereof is 2.0 to 4.0 ?m; and a power spectrum of a surface roughness of the titanium material has a peak of an amplitude height of 0.005 to 0.020 ?m in a range of a wavelength of 1.1 to 2.5 ?m and has a peak of an amplitude height of 0.0010 to 0.0030 ?m in a range of a wavelength of 0.80 to 0.98 ?m. An L*a*b* color space may be L*: 30 to 40, a*: 2.0 to 9.0, and b*: ?7.0 to 18.0.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 19, 2023
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Michio Kaneko, Kiyonori Tokuno, Takao Wada, Mitsuyuki Hasegawa, Kazuo Yamagishi, Mitsuru Nakayama
  • Publication number: 20210189144
    Abstract: The titanium material includes a titanium oxide layer formed on a surface of titanium being a base material, the titanium oxide layer having a thickness measured by a glow discharge spectrometry of 60 to 300 nm, wherein: the titanium oxide layer contains 0.5 to 7.0 at % of nitrogen, and an arithmetic mean roughness Ra of a surface thereof is 2.0 to 4.0 ?m; and a power spectrum of a surface roughness of the titanium material has a peak of an amplitude height of 0.005 to 0.020 ?m in a range of a wavelength of 1.1 to 2.5 ?m and has a peak of an amplitude height of 0.0010 to 0.0030 ?m in a range of a wavelength of 0.80 to 0.98 ?m. An L*a*b* color space may be L*: 30 to 40, a*: 2.0 to 9.0, and b*: ?7.0 to 18.0.
    Type: Application
    Filed: June 18, 2018
    Publication date: June 24, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Michio KANEKO, Kiyonori TOKUNO, Takao WADA, Mitsuyuki HASEGAWA, Kazuo YAMAGISHI, Mitsuru NAKAYAMA
  • Patent number: 10537128
    Abstract: A yeast extract containing 0.2% or more of ?-Glu-Abu based on dry weight of the yeast extract is produced by culturing a yeast, such as Saccharomyces cervisiae or Candida utilis, in a medium containing a compound selected from Abu (L-2-aminobutyric acid) and ?-Glu-Abu (L-?-glutamyl-L-2-aminobutyric acid), and preparing a yeast extract from the obtained cells.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 21, 2020
    Assignee: AJINOMOTO CO., INC.
    Inventors: Hiroaki Nishiuchi, Misato Morita, Wataru Hoshino, Junko Yamazaki, Takayuki Ito, Kazuo Yamagishi
  • Patent number: 9885102
    Abstract: The present invention provides colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment exhibiting a superior resistance to discoloration even when the titanium is used in an environment of harsh acid rain such as a roof or wall material and free from deterioration of the aesthetic appearance over a long period of time, that is, colored pure titanium obtained by the anodic oxidation method, that is, colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment characterized by having an average phosphorus content in a range of 40 nm from a surface of a titanium oxide layer formed on the titanium surface of 5.5 atomic % or less and by having an average carbon concentration in a range of a depth of 100 nm from the titanium surface of 3 to 15 atomic %.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: February 6, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Michio Kaneko, Kiyonori Tokuno, Takao Wada, Mitsuyuki Hasegawa, Kazuo Yamagishi
  • Publication number: 20170067085
    Abstract: A yeast extract containing 0.2% or more of ?-Glu-Abu based on dry weight of the yeast extract is produced by culturing a yeast, such as Saccharomyces cervisiae or Candida utilis, in a medium containing a compound selected from Abu (L-2-aminobutyric acid) and ?-Glu-Abu (L-?-glutamyl-L-2-aminobutyric acid), and preparing a yeast extract from the obtained cells.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 9, 2017
    Applicant: AJINOMOTO CO., INC.
    Inventors: Hiroaki NISHIUCHI, Misato MORITA, Wataru HOSHINO, Junko YAMAZAKI, Takayuki ITO, Kazuo YAMAGISHI
  • Patent number: 8865612
    Abstract: The provision of beautiful colored titanium which is excellent in adhesion of the pure titanium or a titanium alloy with the base material, is excellent in photocatalytic activity, and further is excellent in design properties and a method of production of the same which is excellent in productivity and uses an anodic oxidation process is made the object. A titanium-based material having visible light response and excellent in photocatalytic activity characterized in that the material has pure titanium or titanium alloy as a base material, a thickness of a titanium oxide layer which is present on its surface is 0.1 ?m to 5.0 ?m in range, said titanium oxide layer contains anatase-type titanium dioxide and titanium bonded with hydroxy groups, and further said titanium oxide layer contains nitrogen and carbon respectively in 0.5 to 30 mass %.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: October 21, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Michio Kaneko, Kiyonori Tokuno, Hiroshi Shimizu, Kazuo Yamagishi, Asami Shimomura, Mituyuki Hasegawa, Ruriko Yokoyama
  • Publication number: 20130280381
    Abstract: A yeast extract containing 0.2% or more of ?-Glu-Abu based on dry weight of the yeast extract is produced by culturing a yeast, such as Saccharomyces cervisiae or Candida utilis, in a medium containing a compound selected from Abu (L-2-aminobutyric acid) and ?-Glu-Abu (L-?-glutamyl-L-2-aminobutyric acid), and preparing a yeast extract from the obtained cells.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 24, 2013
    Inventors: Hiroaki Nishiuchi, Misato Morita, Wataru Hoshino, Junko Yamazaki, Takayuki Ito, Kazuo Yamagishi
  • Publication number: 20120135855
    Abstract: The provision of beautiful colored titanium which is excellent in adhesion of the pure titanium or a titanium alloy with the base material, is excellent in photocatalytic activity, and further is excellent in design properties and a method of production of the same which is excellent in productivity and uses an anodic oxidation process is made the object. A titanium-based material having visible light response and excellent in photocatalytic activity characterized in that the material has pure titanium or titanium alloy as a base material, a thickness of a titanium oxide layer which is present on its surface is 0.1 ?m to 5.0 ?m in range, said titanium oxide layer contains anatase-type titanium dioxide and titanium bonded with hydroxy groups, and further said titanium oxide layer contains nitrogen and carbon respectively in 0.5 to 30 mass %.
    Type: Application
    Filed: June 1, 2010
    Publication date: May 31, 2012
    Inventors: Michio Kaneko, Kiyonori Tokuno, Hiroshi Shimizu, Kazuo Yamagishi, Asami Shimomura, Mituyuki Hasegawa, Ruriko Yokoyama
  • Publication number: 20090133783
    Abstract: The present invention provides colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment exhibiting a superior resistance to discoloration even when the titanium is used in an environment of harsh acid rain such as a roof or wall material and free from deterioration of the aesthetic appearance over a long period of time, that is, colored pure titanium obtained by the anodic oxidation method, that is, colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment characterized by having an average phosphorus content in a range of 40 nm from a surface of a titanium oxide layer formed on the titanium surface of 5.5 atomic % or less and by having an average carbon concentration in a range of a depth of 100 nm from the titanium surface of 3 to 15 atomic %.
    Type: Application
    Filed: May 25, 2006
    Publication date: May 28, 2009
    Inventors: Michio Kaneko, Kiyonori Tokuno, Takao Wada, Mitsuyuki Hasegawa, Kazuo Yamagishi
  • Patent number: 7369231
    Abstract: A blood sample containing leukocytes flows through a flow cell. A light source emits a light beam in a first direction. The light beam incident into the flow cell is scattered by the blood sample as scattered light. A first detector detects an intensity of forward small scattered light out of the scattered light. The first detector is arranged so as to have a maximum angle of a detection angle range for the forward small scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which is 3.1 (4) degrees or less. A second detector detects an intensity of forward large scattered light out of the scattered light. The second detector is arranged so as to have a detection angle range for the forward large scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which falls in a range from 8 to 12 (10 to 16) degrees.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: May 6, 2008
    Assignee: Nihon Kohden Corporation
    Inventors: Yutaka Nagai, Kazuo Yamagishi, Tomonobu Maruyama
  • Patent number: 7092078
    Abstract: A blood sample containing leukocytes flows through a flow cell. A light source emits a light beam in a first direction. The light beam incident into the flow cell is scattered by the blood sample as scattered light. A first detector detects an intensity of forward small scattered light out of the scattered light. The first detector is arranged so as to have a maximum angle of a detection angle range for the forward small scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which is 3.1 (4) degrees or less. A second detector detects an intensity of forward large scattered light out of the scattered light. The second detector is arranged so as to have a detection angle range for the forward large scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which falls in a range from 8 to 12 (10 to 16) degrees.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: August 15, 2006
    Assignee: Nihon Kohden Corporation
    Inventors: Yutaka Nagai, Kazuo Yamagishi, Tomonobu Maruyama
  • Publication number: 20050219508
    Abstract: A blood sample containing leukocytes flows through a flow cell. A light source emits a light beam in a first direction. The light beam incident into the flow cell is scattered by the blood sample as scattered light. A first detector detects an intensity of forward small scattered light out of the scattered light. The first detector is arranged so as to have a maximum angle of a detection angle range for the forward small scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which is 3.1 (4) degrees or less. A second detector detects an intensity of forward large scattered light out of the scattered light. The second detector is arranged so as to have a detection angle range for the forward large scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which falls in a range from 8 to 12 (10 to 16) degrees.
    Type: Application
    Filed: May 24, 2005
    Publication date: October 6, 2005
    Inventors: Yutaka Nagai, Kazuo Yamagishi, Tomonobu Maruyama
  • Patent number: 6806482
    Abstract: A photovoltaic solid state relay has a light-emitting diode for emitting light in response to an electrical control signal. First and second photovoltaic devices are optically coupled to the light-emitting diode for converting the light to first and second voltages, respectively. First and second unipolar transistors are provided having first and second gate electrodes for respectively receiving the first and second voltages and jointly establishing a first current conducting path between output terminals to which a load circuit will be connected. A bipolar transistor is provided having a base connected to a junction between the first and second unipolar transistors for establishing a second current conducting path in parallel to the first current conducting path in one of opposite directions depending on voltages applied to the output terminals.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: October 19, 2004
    Assignee: NEC Compound Semiconductor Devices, Ltd.
    Inventor: Kazuo Yamagishi
  • Publication number: 20040189977
    Abstract: A blood sample containing leukocytes flows through a flow cell. A light source emits a light beam in a first direction. The light beam incident into the flow cell is scattered by the blood sample as scattered light. A first detector detects an intensity of forward small scattered light out of the scattered light. The first detector is arranged so as to have a maximum angle of a detection angle range for the forward small scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which is 3.1 (4) degrees or less. A second detector detects an intensity of forward large scattered light out of the scattered light. The second detector is arranged so as to have a detection angle range for the forward large scattered light stemmed from the first direction at a position inside (outside) of the flow cell, which falls in a range from 8 to 12 (10 to 16) degrees.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Yutaka Nagai, Kazuo Yamagishi, Tomonobu Maruyama
  • Patent number: 6791123
    Abstract: An n− type layer 12 is epitaxially grown on one main surface (front surface) of an n+ type silicon substrate 11 and an anode electrode 13 is electrically in contact with the other main surface (rear surface) thereof. A p type region 14 is selectively formed in a surface layer of the n− type layer 12 and a n+ type region 15 is selectively formed in a surface layer of the p type region 14. A cathode electrode 17 is electrically in contact with a surface of the n+ type region 15.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: September 14, 2004
    Assignee: NEC Electronics Corporation
    Inventors: Kazuo Yamagishi, Kazumi Yamaguchi
  • Publication number: 20040129864
    Abstract: A photovoltaic solid state relay has a light-emitting diode for emitting light in response to an electrical control signal. First and second photovoltaic devices are optically coupled to the light-emitting diode for converting the light to first and second voltages, respectively. First and second unipolar transistors are provided having first and second gate electrodes for respectively receiving the first and second voltages and jointly establishing a first current conducting path between output terminals to which a load circuit will be connected. A bipolar transistor is provided having a base connected to a junction between the first and second unipolar transistors for establishing a second current conducting path in parallel to the first current conducting path in one of opposite directions depending on voltages applied to the output terminals.
    Type: Application
    Filed: October 29, 2003
    Publication date: July 8, 2004
    Applicant: NEC COMPOUND SEMICONDUCTOR DEVICES, LTD.
    Inventor: Kazuo Yamagishi
  • Patent number: 6735969
    Abstract: In order to enhance air heating capacity during low outdoor air temperature, a gas heat pump type air conditioning device comprises a compression device having a gas engine driving source and forming a refrigerating cycle by circulating a refrigerant, an engine-coolant-water system, a channel change switching device, a bypass channel which is provided with the channel change switching device in the engine-coolant-water system downstream of the gas engine, and an engine-coolant-water heating device provided in the bypass channel, and waste heat exhausted from the gas engine is collected in the engine-coolant-water, and the refrigerant is heated by the engine-coolant-water so as to enhance air-heating-capacity.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: May 18, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tsukasa Kasagi, Hiraku Kunita, Ryuji Morishima, Kazuo Yamagishi
  • Publication number: 20030071676
    Abstract: An n− type layer 12 is epitaxially grown on one main surface (front surface) of an n+ type silicon substrate 11 and an anode electrode 13 is electrically in contact with the other main surface (rear surface) thereof. A p type region 14 is selectively formed in a surface layer of the n− type layer 12 and a n+ type region 15 is selectively formed in a surface layer of the p type region 14. A cathode electrode 17 is electrically in contact with a surface of the n+ type region 15.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 17, 2003
    Applicant: NEC CORPORATION
    Inventors: Kazuo Yamagishi, Kazumi Yamaguchi
  • Publication number: 20030070445
    Abstract: In order to enhance air heating capacity during low outdoor air temperature, a gas heat pump type air conditioning device comprises a compression device having a gas engine driving source and forming a refrigerating cycle by circulating a refrigerant, an engine-coolant-water system, a channel change switching device, a bypass channel which is provided with the channel change switching device in the engine-coolant-water system downstream of the gas engine, and an engine-coolant-water heating device provided in the bypass channel, and waste heat exhausted from the gas engine is collected in the engine-coolant-water, and the refrigerant is heated by the engine-coolant-water so as to enhance air-heating-capacity.
    Type: Application
    Filed: August 1, 2002
    Publication date: April 17, 2003
    Inventors: Tsukasa Kasagi, Hiraku Kunita, Ryuji Morishima, Kazuo Yamagishi
  • Publication number: 20030041613
    Abstract: In order to obtain more enhanced air heating capacity during low outdoor air temperature, a gas heat pump type air conditioning device which circulates refrigerant by a compressing device of which driving source is a gas engine, forms a refrigerating cycle, collects waste heat of exhaust gas exhausted from the gas engine to engine coolant water by an exhaust gas heat exchanging device, and heats the refrigerant by the engine coolant water to enhance the heating capacity, the exhaust gas exhausted from the gas engine is heated, and a heating device for increasing amount of thermal energy which can be collected in the exhaust gas heat exchanging device is provided.
    Type: Application
    Filed: August 5, 2002
    Publication date: March 6, 2003
    Inventors: Tsukasa Kasagi, Hiraku Kunita, Ryuji Morishima, Kazuo Yamagishi