Patents by Inventor Shuichi Ohara

Shuichi Ohara 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: 7105244
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: September 12, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Patent number: 6893832
    Abstract: Disclosed is a method for quantifying cholesterol in HDL, which does not require complex fragmentation and separation operations, and by which the HDL cholesterol in test samples containing HDL and other lipoproteins such as low density lipoprotein (LDL), very low density lipoprotein (VLDL) and chylomicron (CM) may be quantified selectively, simply and accurately. The method for quantifying cholesterol in high density lipoprotein comprises a first step of erasing cholesterol in lipoproteins other than high density lipoprotein in a test sample, and a second step of adding a surfactant which specifically acts on high density lipoprotein to the product of the first step and enzymatically quantifying cholesterol in high density lipoprotein.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: May 17, 2005
    Assignee: Denka Seiken Co., Ltd.
    Inventors: Hiroshi Matsui, Yasuki Ito, Shuichi Ohara, Akira Fujiwara
  • Publication number: 20040224211
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Applicant: HITACHI, LTD.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Publication number: 20040224208
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Applicant: HITACHI, LTD.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Publication number: 20040224207
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Applicant: HITACHI, LTD.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Publication number: 20030059660
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Application
    Filed: June 11, 2002
    Publication date: March 27, 2003
    Applicant: HITACHI, LTD.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Publication number: 20030059659
    Abstract: An object of the present invention is to obtain a fuel cell power generation equipment most suitable for a portable power source without requiring any auxiliary equipment such as a separator and a fluid feeder. According to the present invention, a fuel cell power generation equipment is provided, in which an anode for oxidizing fuel and a cathode for reducing oxygen are formed with an electrolyte membrane in between and liquid is used as a fuel, wherein one or more air vent holes are provided on a wall surface of a fuel container 1, multiple unit cells having an electrolyte membrane, an anode and a cathode are mounted on a wall surface of said fuel container, and the unit cells are electrically connected each other.
    Type: Application
    Filed: February 25, 2002
    Publication date: March 27, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Tomoichi Kamo, Shuichi Ohara, Makoto Morishima
  • Publication number: 20020192732
    Abstract: Disclosed is a method for quantifying cholesterol in HDL, which does not require complex fragmentation and separation operations, and by which the HDL cholesterol in test samples containing HDL and other lipoproteins such as low density lipoprotein (LDL), very low density lipoprotein (VLDL) and chylomicron (CM) may be quantified selectively, simply and accurately. The method for quantifying cholesterol in high density lipoprotein comprises a first step of erasing cholesterol in lipoproteins other than high density lipoprotein in a test sample, and a second step of adding a surfactant which specifically acts on high density lipoprotein to the product of the first step and enzymatically quantifying cholesterol in high density lipoprotein.
    Type: Application
    Filed: July 9, 2002
    Publication date: December 19, 2002
    Applicant: Denka Seiken Co., Ltd.
    Inventors: Hiroshi Matsui, Yasuki Ito, Shuichi Ohara, Akira Fujiwara
  • Patent number: 6479249
    Abstract: Disclosed is a method for quantifying cholesterol in HDL, which does not require complex fragmentation and separation operations, and by which the HDL cholesterol in test samples containing HDL and other lipoproteins such as low density lipoprotein (LDL), very low density lipoprotein (VLDL) and chylomicron (CM) may be quantified selectively, simply and accurately. The method for quantifying cholesterol in high density lipoprotein comprises a first step of erasing cholesterol in lipoproteins other than high density lipoprotein in a test sample, and a second step of adding a surfactant which specifically acts on high density lipoprotein to the product of the first step and enzymatically quantifying cholesterol in high density lipoprotein.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: November 12, 2002
    Assignee: Denka Seiken Co., Ltd.
    Inventors: Hiroshi Matsui, Yasuki Ito, Shuichi Ohara, Akira Fujiwara
  • Publication number: 20020001819
    Abstract: Disclosed is a method for quantifying cholesterol in HDL, which does not require complex fragmentation and separation operations, and by which the HDL cholesterol in test samples containing HDL and other lipoproteins such as low density lipoprotein (LDL), very low density lipoprotein (VLDL) and chylomicron (CM) may be quantified selectively, simply and accurately. The method for quantifying cholesterol in high density lipoprotein comprises a first step of erasing cholesterol in lipoproteins other than high density lipoprotein in a test sample, and a second step of adding a surfactant which specifically acts on high density lipoprotein to the product of the first step and enzymatically quantifying cholesterol in high density lipoprotein.
    Type: Application
    Filed: August 6, 1998
    Publication date: January 3, 2002
    Inventors: HIROSHI MATSUI, YASUKI ITO, SHUICHI OHARA, AKIRA FUJIWARA
  • Patent number: 6194164
    Abstract: A method for quantifying LDL cholesterol, by which LDL cholesterol is separately quantified simply without requiring complicated centrifuge operation is disclosed. The method for quantifying cholesterol in low density lipoprotein according to the present invention comprises a first step of erasing cholesterol in high density lipoprotein, very low density lipoprotein and chylomicron in a test sample, and a second step of quantifying cholesterol remaining in the test sample.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: February 27, 2001
    Assignee: Denka Seiken Co., Ltd.
    Inventors: Hiroshi Matsui, Kazushige Mizuno, Yasuki Ito, Shuichi Ohara, Akira Fujiwara, Kenichi Takasugi, Masahiko Okada
  • Patent number: 5910271
    Abstract: A liquid crystal display apparatus, having a designated drive composed of a group of electrodes forming pixels in a n.times.m matrix and active devices, in which the electrodes have a structure such that an electric field parallel to the interface can be applied to the liquid crystal composite layer, and the cell-gap between substrates facing each other is 6 .mu.m or less and the response time is less than or equal to 100 ms, and greater than or equal to 1 ms.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: June 8, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Masahito Ohe, Katsumi Kondo, Masuyuki Ota, Shuichi Ohara
  • Patent number: 5854139
    Abstract: A field-effect transistor using a conjugated oligomer having an ionization potential of 4.8 eV or above in the semiconductor layer thereof works stably and has a long life-time and can be used in a liquid crystal display device as a switching element to give excellent contrast and good performances.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: December 29, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Sukekazu Aratani, Katsumi Kondo, Shuichi Ohara
  • Patent number: 5705826
    Abstract: A field-effect transistor using a conjugated oligomer having an ionization potential of 4.8 eV or above in the semiconductor layer thereof works stably and has a long life-time and can be used in a liquid crystal display device as a switching element to give excellent contrast and good performances.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: January 6, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Sukekazu Aratani, Katsumi Kondo, Shuichi Ohara
  • Patent number: 5638465
    Abstract: An image of a part is used to judge whether it is good or no good. A predetermined intensity, edge or similar feature image is extracted from the inspected image and is quantized. The quantized feature image is obtained from a training image in advance, and the feature is subjected to a generalized Hough transform operation which refers to the weight of each feature point for each feature value in the image and vote the feature point weight. The similarity is obtained from the results of the transform operation, and a good/no good judgement is made depending upon whether the similarity is above or below a threshold value.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: June 10, 1997
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Mutsuo Sano, Masashi Okudaira, Eiji Mitsuya, Joji Sahashi, Hisao Kuroda, Shuichi Ohara
  • Patent number: 5313293
    Abstract: A display device, which is adapted for time-division driving and is free from occurrence of crosstalk, includes a pair of substrates which are arranged to be opposite to each other and at least one of which is transparent, electrodes provided respectively on surfaces of the substrates facing each other, and a material which is sandwiched between the electrodes and the light transmitting quantity of which is changed by an electric field applied between the electrodes. The electrodes formed on the surfaces of the substrates facing each other constitute scanning electrodes and signal electrodes which intersect each other to form display portions. The signal electrodes constitutes independent electrodes formed independently of each other in units of display portions. Outside leads of the respective independent electrodes are passed through the substrate provided with the electrodes and are led out to the back surface of the substrate.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: May 17, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Jun-ichi Hirakata, Katsumi Kondo, Shuichi Ohara, Masato Isogai, Satoru Ogihara, Naoki Kikuchi
  • Patent number: 5157526
    Abstract: The polarizer of the present invention is composed of mediums having different refractive indices, by which ordinary light in incidented light is wholly reflected at a boundary between laminated medium I and medium II and extraordinary light is transmitted through the medium II. The medium II is so arranged as to be almost 45.degree. to the light axis, and thickness of the medium II is selected as a value with which the medium II works as a half wave length plate to the transmitting light. The polarizer, which has high transparency by reduction of absorption and is able to make most of incident light be similarly polarized light, is obtained. A polarizer for and apparatus for bright liquid crystal display, which is able to be enlarged to a large size display without light absorption, can be provided.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: October 20, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Katsumi Kondo, Junichi Hirakata, Osamu Ito, Teruo Kitamura, Shuichi Ohara, Naoki Kikuchi, Masato Shimura
  • Patent number: 5116148
    Abstract: The present invention provides a heat transfer process and a heat transfer ink sheet, where a letter or image or both is recorded by selectively heating a heat transfer ink sheet having ink layer regions each containing a sublimable or vaporizable dye by heating by a thermal head controlled by a controlling means, thereby selectively heat transferring the sublimated or vaporized dyes onto a recording sheet, and is characterized by heat transferring a precoating layer for receiving the dyes from the ink sheet onto the recording sheet before the heat transfer recording, and then pressing the ink sheet on the transferred precoating layer on the recording sheet and heating the ink sheet by the thermal head, thereby sublimating or vaporizing the dyes from the respective ink layers onto the precoating layer and forming the letter or image or both on the recording sheet.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 26, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Shuichi Ohara, Shiniichi Akasaka, Hiroyuki Oka, Shintaroo Hattori, Rieko Oyama
  • Patent number: 5093888
    Abstract: An optical transmitting system comprising a light source, an optical transmitting portion from the light source, and an optical detecting portion characterized in that a fraction of deuterium substitution for hydrogen in a repeat unit of an organic polymer composing the optical transmitting portion is at most 40%, fluorine content in said organic polymer is less than 40% by weight, and said organic polymer comprises an amorphous polymer which satisfies the equation (I):(.rho./M)(9.1.times.10.sup.-5.n.sub.CH +9.1.times.10.sup.-4.n.sub.NH +1.5.times.10.sup.-3.n.sub.OH)<5.3.times.10.sup.-6 (I)[where, .rho. is density of the polymer (g/cm.sup.3), M is molecular weight of the repeat unit (g/mol), n.sub.CH, n.sub.NH, and n.sub.OH indicates number of combination of C--H bond, N--H bond, and O--H bond in the repeat unit respectively].
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: March 3, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitaka Takezawa, Shuichi Ohara, Seikich Tanno, Noriaki Taketani, Masato Shimura
  • Patent number: 5071824
    Abstract: A heat transfer sheet which has a high recording sensitivity and can form image of high maximum reflection density and of high contrast is provided by containing in an ink layer of the heat transfer sheet at least one dye which has a product of an extinction coefficient (l.cm.sup.-1.g.sup.-1) and an evaporation or sublimation rate at 240.degree. C. (wt %.min..sup.-1) of at least 1.8.times.10.sup.2 (l.wt %.cm.sup.-1.g.sup.-1.min.sup.-1).
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: December 10, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Shuichi Ohara, Satoru Amou, Shinichi Akasaka