Patents by Inventor Yasufumi Yamamoto

Yasufumi Yamamoto 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: 8768114
    Abstract: An opto-electric hybrid board which is capable of suppressing the increase in light propagation losses and which is excellent in flexibility, and a method of manufacturing the same are provided. The opto-electric hybrid board includes an electric circuit board, an optical waveguide, and a metal layer. The electric circuit board includes an insulative layer having front and back surfaces, and electrical interconnect lines formed on the front surface of the insulative layer. The optical waveguide is formed on the back surface of the insulative layer of the electric circuit board. The metal layer is formed between the optical waveguide and the back surface of the insulative layer of the electric circuit board. The metal layer is patterned to have a plurality of strips. Cores of the optical waveguide are disposed in a position corresponding to a site where the metal layer is removed by the patterning.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: July 1, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Yuichi Tsujita, Yasuto Ishimura, Hiroyuki Hanazono, Naoyuki Tanaka, Yasufumi Yamamoto, Shotaro Masuda, Mayu Ozaki
  • Publication number: 20140168937
    Abstract: A lighting device includes a light source which is disposed in a vicinity of a part to be lighted and provided for a function other than lighting the part to be lighted, and a light projecting part which is movable between a lighting position and a non-lighting position and configured to emit the light from the light source to the part to be lighted when the light projecting part is moved to the lighting position.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 19, 2014
    Applicant: Fujitsu Limited
    Inventors: Ju KATO, Yasufumi YAMAMOTO, Eiji TAKIZAWA
  • Publication number: 20130301980
    Abstract: An opto-electric hybrid board capable of suppressing the increase in light propagation losses and excellent in flexibility, and a method of manufacturing the same, are provided. The opto-electric hybrid board includes an electric circuit board, an optical waveguide, and a metal layer. The electric circuit board includes an insulative layer having front and back surfaces, and electrical interconnect lines formed on the front surface of the insulative layer. The optical waveguide is formed on the back surface of the insulative layer. The metal layer is formed between the cladding layer and the insulative layer. At least part of the metal layer is formed in one of first and second patterns. The first pattern includes a distribution of dot-shaped protrusions, and the second pattern includes a distribution of dot-shaped recesses. A first cladding layer fills a site where the metal layer is removed by the patterning.
    Type: Application
    Filed: April 19, 2013
    Publication date: November 14, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuichi Tsujita, Yasuto Ishimaru, Hiroyuki Hanazono, Naoyuki Tanaka, Yasufumi Yamamoto, Shotaro Masuda, Mayu Ozaki
  • Publication number: 20130243371
    Abstract: An opto-electric hybrid board includes an electric circuit board, an optical waveguide, and a metal layer. The electric circuit board includes an insulative layer having front and back surfaces, and electrical interconnect lines formed on the front surface of the insulative layer. The optical waveguide includes a first cladding layer and cores, and the optical waveguide is formed on the back surface of the insulative layer of the electric circuit board. The metal layer is formed between the first cladding layer of the optical waveguide and the back surface of the insulative layer of the electric circuit board. Part of the opto-electric hybrid board is formed as a to-be-bent portion. The metal layer is partially removed in a portion corresponding to the to-be-bent portion. A first cladding layer of the optical waveguide fills a site where the metal layer is removed.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 19, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuichi TSUJITA, Yasuto ISHIMARU, Akihito MATSUTOMI, Naoyuki TANAKA, Yasufumi YAMAMOTO, Mayu OZAKI
  • Publication number: 20130243370
    Abstract: An opto-electric hybrid board which is capable of suppressing the increase in light propagation losses and which is excellent in flexibility, and a method of manufacturing the same are provided. The opto-electric hybrid board includes an electric circuit board, an optical waveguide, and a metal layer. The electric circuit board includes an insulative layer having front and back surfaces, and electrical interconnect lines formed on the front surface of the insulative layer. The optical waveguide is formed on the back surface of the insulative layer of the electric circuit board. The metal layer is formed between the optical waveguide and the back surface of the insulative layer of the electric circuit board. The metal layer is patterned to have a plurality of strips. Cores of the optical waveguide are disposed in a position corresponding to a site where the metal layer is removed by the patterning.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 19, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuichi Tsujita, Yasuto Ishimaru, Hiroyuki Hanazono, Naoyuki Tanaka, Yasufumi Yamamoto, Shotaro Masuda, Mayu Ozaki
  • Publication number: 20130116138
    Abstract: Described herein are small peptide domains and consensus sequences that bind small target molecules of industrial importance, e.g., metals such as nickel, ? carotene, and isoflavones such as genistein. Also described are fusion proteins containing such binding domains fused to proteins or to peptide domains like GST or GBD that bind other ligands and can be used to immobilize the target binding domain on a support. One class of fusion proteins that is useful in industrial settings are fusions that contain concatemers of target binding domains, which increases the binding equivalents per molecule.
    Type: Application
    Filed: January 28, 2011
    Publication date: May 9, 2013
    Applicants: Archer-Daniels-Midland Company, Iowa State University Research Foundation, Inc.
    Inventors: Thomas P. Binder, Aragula Gururaj Rao, Yasufumi Yamamoto, Paul Hanke
  • Publication number: 20130021728
    Abstract: A display device includes: a display panel; a first housing attached to the display panel, the first housing having an opening to expose a display surface of the display panel; and a second housing attached to the first housing to cover a back surface of the display panel, wherein an end portion of one of the first housing and the second housing includes a folded portion and an end portion of the other of the first housing and the second housing includes an insertion portion to be inserted into the end portion.
    Type: Application
    Filed: May 23, 2012
    Publication date: January 24, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Yasufumi YAMAMOTO, Masuo OHNISHI
  • Patent number: 8139352
    Abstract: A medium drive unit includes a frame having an operating section, on a rear surface of which facing the main body side of the frame is provided a projection projecting toward the button, and which, upon receiving a depression operation from an outer surface side facing the outside, is biased toward the main body side and pushes the button with the leading end of the projection, a frame main body which surrounds the operating section so as to be separated from the operating section by an opening which extends surrounding the operating section, and passes through the front and rear surfaces of the frame, and an elastic support piece which extends through the opening along an edge of the operating section adjacent to the opening, of which one end is connected to the frame main body and the other end to the operating section.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: March 20, 2012
    Assignee: Fujitsu Limited
    Inventors: Yasufumi Yamamoto, Kaigo Tanaka
  • Publication number: 20100124007
    Abstract: A medium drive unit includes a frame having an operating section, on a rear surface of which facing the main body side of the frame is provided a projection projecting toward the button, and which, upon receiving a depression operation from an outer surface side facing the outside, is biased toward the main body side and pushes the button with the leading end of the projection, a frame main body which surrounds the operating section so as to be separated from the operating section by an opening which extends surrounding the operating section, and passes through the front and rear surfaces of the frame, and an elastic support piece which extends through the opening along an edge of the operating section adjacent to the opening, of which one end is connected to the frame main body and the other end to the operating section.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 20, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Yasufumi Yamamoto, Kaigo Tanaka
  • Patent number: 5444809
    Abstract: A flame retardant resin composition comprising a mixture of:a) 10 to 70 parts by weight of an ethylene/(meth)acrylic ester copolymer;b) 30 to 90 parts by weight of a low crystalline ethylene/higher olefin copolymer;c) 0 to 30 parts by weight of an ethylene polymer selected from the group consisting of polyethylene and crystalline ethylene/.alpha.-olefin copolymers;d) 150 to 250 parts by weight, based on 100 parts by weight of the polymer components a), b) and c), of a metal hydroxide flame retardant; ande) 2 to 30 parts by weight of red phosphorus, anda flame retardant plastic optical fiber cable comprising a plastic optical fiber core and the above resin composition covering the plastic optical fiber core.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: August 22, 1995
    Assignees: Mitsubhishi Rayon Company Ltd., Du Pont-Mitsui Polychemicals Co., Ltd.
    Inventors: Kazunori Aoki, Yasufumi Yamamoto, Koji Ueki