Patents by Inventor Yutaka Unuma

Yutaka Unuma 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: 7951279
    Abstract: There is provided an electrophoresis device including an insulator that includes: a first-separating-medium storing section for storing therein a first separating medium; a first opening and a second opening that are in communication with the first-separating-medium storing section and for defining a direction of separation on the first separating medium; and a third opening that is covered with a penetrable insulating thin film, wherein the first separating medium storing section is in communication with outside via the first opening and the second opening. There is also provided an electrophoresis apparatus including the electrophoresis device. This realizes an electrophoresis apparatus, and a device therefor, that enables an operator to sample separated proteins without ever making contact with the electrophoresed gel, and that can easily be used with various types of analyses, thereby improving convenience of electrophoresis.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: May 31, 2011
    Assignees: Toppan Printing Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Chie Hayashida, Koji Sakairi, Katsuyoshi Takahashi, Yuji Maruo, Michinobu Mieda, Yutaka Unuma
  • Publication number: 20110114485
    Abstract: An electrophoresis apparatus includes a sample separating section for containing a sample separating medium for separating a sample in a horizontal direction, the sample separating section containing the sample separating medium in such a manner that the sample separating medium has an exposed portion at least one end of a surface of the sample separating medium, the surface being in parallel with the horizontal direction; and medium connecting means for connecting a sample containing medium to the sample separating medium at a connecting region, the sample containing medium containing a sample, and the connecting region satisfying a particular equation. By this, an electrophoresis technique with better accuracy than conventional arts can be provided.
    Type: Application
    Filed: July 15, 2009
    Publication date: May 19, 2011
    Inventors: Koji Sakairi, Satonari Akutsu, Yuji Maruo, Takateru Matsunaga, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Nao Sakaguchi, Kenji Yokoyama
  • Publication number: 20110094887
    Abstract: A sample separation/adsorption appliance (100) according to one embodiment of the present invention includes: a first buffer solution tank (103) equipped with a first electrode (101) and used for holding a first buffer solution; a second buffer solution tank (104) equipped with a second electrode (102) and used for holding a second buffer solution; a sample separation section (110) that holds a sample separation medium (131) for separating a sample; and a conductive section (120) that holds a conductive medium (133), wherein: the sample separation medium (131) and the conductive medium (133) are in contact with the sample adsorption member (132), respectively, on the opposite sides thereof; an end of the sample separation medium (131) opposite to an end being in contact with the sample adsorption member (132) is connected to an inside of the first buffer solution tank (103); and an end of the conductive medium (133) opposite to an end being in contact with the sample adsorption member (132) is connected to an
    Type: Application
    Filed: June 1, 2009
    Publication date: April 28, 2011
    Inventors: Uichi Midorikawa, Takateru Matsunaga, Yuji Maruo, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Kenji Yokoyama
  • Publication number: 20090127118
    Abstract: A sample separation/adsorption appliance (100) includes: a first buffer solution tank (1) in which a first electrode (12) is to be disposed; a second buffer solution tank (2) in which a second electrode (22) is to be disposed; and a sample separating section (3) in which a separation medium (33) is to be contained. The sample separating section (3) has a first opening (31) opening into the first buffer solution tank (1) and a second opening (32) opening into the second buffer solution tank (2). The appliance (100) further includes second electrode fixing means (4) for disposing the second electrode (22) oppositely to the second opening (32). Preferably, the appliance (100) further includes adsorption member holding means (5) for holding an adsorption member (6) between the second opening (32) and the second electrode (22) to adsorb sample components which was discharged from the second opening (32) onto the adsorption member (6).
    Type: Application
    Filed: April 18, 2007
    Publication date: May 21, 2009
    Inventors: Yutaka Unuma, Michinobu Mieda, Yuji Maruo, Katsuyoshi Takahashi
  • Publication number: 20080296158
    Abstract: A device for electrophoresis applies a voltage to a medium in contact with a plurality of electric conductors so that a potential of adjacent conductors is within a certain range. This allows preventing decline in electrophoresis speed. A device for electrophoresis and transfer includes an electrode having a plurality of electrode regions being insulated one another and arranged in a specific direction. This allows providing a practical and easy-to-use device for electrophoresis and transfer. A device for transfer alters an applied voltage or applied voltage duration to a certain position to another position. This allows improving transfer efficiency.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicants: SHARP KABUSHIKI KAISHA, National Institute of Advanced Industrial Science and Technology, TOPPAN PRINTING CO., LTD.
    Inventors: Yuji Maruo, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Kenji Yokoyama, Koji Sakairi, Satonari Akutsu
  • Publication number: 20080067079
    Abstract: A sample analysis method of the present invention is a method of analyzing a sample plural times continuously, the sample containing plural sample components, the method including: performing first analysis with the sample in a first analysis medium; collecting the sample components after the first analysis with an analysis result of the first analysis maintained; and providing the collected sample components to second analysis. A sample analysis apparatus of the present invention is an apparatus for analyzing a sample in plural times continuously, the sample containing plural sample components, the apparatus including: a first analysis section in which a first analysis medium is held; a sample collecting section for collecting sample components analyzed by the first analysis; and a second analysis section for analyzing the sample components collected by the sample collecting section. The sample analysis method apparatus of present invention make it possible to analyze sample plural times efficiently.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 20, 2008
    Inventors: Katsuyoshi Takahashi, Yutaka Unuma, Yuji Maruo
  • Publication number: 20080053829
    Abstract: There is provided an electrophoresis device (100) including an insulator (10) that includes: a first-separating-medium storing section (4?) for storing therein a first separating medium (4); a first opening (7) and a second opening (8) that are in communication with the first-separating-medium storing section (4?) and for defining a direction of separation on the first separating medium (4); and a light-transmissive portion for observing inside of the first-separating-medium storing section (4?) from outside, wherein the light-transmissive portion is covered with an anti-reflective layer (3). There is also provided an electrophoresis apparatus including the electrophoresis device (100). In one embodiment of the electrophoresis device (100), the anti-reflective layer 3 is not provided, and a light absorbing layer is provided opposite the light-transmissive portion with the first-separating-medium storing section in between.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 6, 2008
    Inventors: Chie Hayashida, Koji Sakairi, Katsuyoshi Takahashi, Yuji Maruo, Michinobu Mieda, Yutaka Unuma
  • Publication number: 20070278102
    Abstract: There is provided an electrophoresis device (100) including an insulator (10) that includes: a first-separating-medium storing section (4?) for storing therein a first separating medium (4); a first opening (7) and a second opening (8) that are in communication with the first-separating-medium storing section (4?) and for defining a direction of separation on the first separating medium (4); and a third opening (9) that is covered with a penetrable insulating thin film (3), wherein the first separating medium storing section (4?) is in communication with outside via the first opening (7) and the second opening (8). There is also provided an electrophoresis apparatus including the electrophoresis device (100). This realizes an electrophoresis apparatus, and a device therefor, that enables an operator to sample separated proteins without ever making contact with the electrophoresed gel, and that can easily be used with various types of analyses, thereby improving convenience of electrophoresis.
    Type: Application
    Filed: September 5, 2006
    Publication date: December 6, 2007
    Inventors: Chie Hayashida, Koji Sakairi, Katsuyoshi Takahashi, Yuji Maruo, Michinobu Mieda, Yutaka Unuma
  • Publication number: 20070045118
    Abstract: The present invention is to provide a sample separation instrument used in a sample separation apparatus which includes: holding means for holding a first medium supporter which supports a first medium; and driving means for moving fixing means or the holding means in a direction parallel or perpendicular to a plane whose sides extend in the first direction and in the second directions. The sample separation instrument includes an insulator for storing a second medium which allows a sample separated in the first medium in the first direction to be further separated in the second direction different from the first direction, wherein: the insulator includes a first opening and a second opening each of which defines the second direction in which the second medium is electrified, and the second opening has a shape which allows the first medium containing the separated sample to be attached to the second medium along the first direction.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 1, 2007
    Applicants: SHARP KABUSHIKI KAISHA, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOPPAN PRINTING CO., LTD., KATAYANAGI INSTITUTE
    Inventors: Yuji Maruo, Katsuyoshi Takahashi, Yutaka Unuma, Keisuke Usui, Hideki Kinoshita, Kisho Shiseki, Yoshio Suzuki, Atsunori Hiratsuka, Hiroyuki Fukui, Kenji Yokoyama, Ichiji Namatame, Kouhei Yodoya, Yasuhiro Ogawa, Koji Sakairi, Chie Hayashida, Satonari Akutsu, Kazuyoshi Yano, Isao Karube
  • Patent number: 5943463
    Abstract: A color image sensor has a white fluorescent tube as a light source, a microlens array with three rows of microlenses arranged vertically, a three-layer optical waveguide array and a three-line color CCD with color filters. The waveguides in each waveguide array layer are bent so that the interval between successive waveguides becomes narrower from the input end toward the output end. The three-line color CCD has three lines of light-receiving elements (photodiodes) as the light sensing portion. These lines in the light-receiving element array are arranged vertically at the same intervals as the waveguide layers are arranged. Further, a cylindrical lens is attached to cover the microlens array. Because of the presence of this cylindrical lens, the images of light beams incident on different microlenses of the microlens array corresponding to different waveguide layers are the same image from an identical area on the original.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: August 24, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yutaka Unuma, David Heard, Akio Miyata, Manabu Fujimoto, Hisako Arai, Teruyuki Kataoka
  • Patent number: 5905836
    Abstract: In an optical waveguide reduction optical image sensor constituted by a polymeric optical waveguide array having a plurality of cores arranged into a one-dimensional array in a cladding substrate, and a photoelectric conversion element array for detecting light propagating through the polymeric optical waveguide array and converting the detected light into an electrical signal, a hollow thermal expansion suppressing member (jig) is mounted on the joint portion between the polymeric optical waveguide array and the photoelectric conversion element array, and the coefficient of linear thermal expansion of the thermal expansion suppressing member in the core array direction of the polymeric optical waveguide array is smaller than that of the polymeric optical waveguide array in the same direction.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: May 18, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisako Arai, Akio Miyata, Yutaka Unuma
  • Patent number: 5747796
    Abstract: A waveguide type reduction type image sensor has a waveguide type light source having a light emitting element and a substrate including optical waveguides having a planar waveguide and a tapered waveguide. The waveguide type reduction type image sensor also has a light detecting section having a microlens array, an optical waveguide substrate and a CCD array. The microlens array converges reflected light from an original onto the incident face of the optical waveguide substrate. The optical waveguide substrate has L-shaped optical waveguides for guiding the converged light to the CCD array located on a substrate face perpendicular to the incident face. The CCD array converts the guided light to an electric signal and outputs this electric signal. A manufacturing method of this waveguide type reduction type image sensor is also shown.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: May 5, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: David Heard, Noboru Ohtani, Yutaka Unuma, Manabu Fujimoto