Patents by Inventor Hiroshi Yamagata

Hiroshi Yamagata 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: 7802493
    Abstract: A connecting rod includes a rod main body, a small end located at one end of the rod main body and a big end located at another end of the rod main body, the big end including a curved section which is curved so as to become narrower toward the rod main body. The big end is formed of a metal material whose composition is different from that of the rod main body, and is bonded to the rod main body. A joint between the big end and the rod main body is located closer to the small end than is an end of the curved section facing the rod main body.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: September 28, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Tsuyoshi Kubota, Hirotaka Kurita, Hiroshi Yamagata
  • Publication number: 20100229822
    Abstract: An engine component is composed of an aluminum alloy containing silicon, and includes a plurality of primary-crystal silicon grains located on a slide surface. The plurality of primary-crystal silicon grains have an average crystal grain size of no less than about 12 ?m and no more than about 50 ?m.
    Type: Application
    Filed: May 28, 2010
    Publication date: September 16, 2010
    Applicant: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hirotaka KURITA, Hiroshi YAMAGATA, Toshikatsu KOIKE
  • Patent number: 7765977
    Abstract: An engine component is composed of an aluminum alloy containing silicon, and includes a plurality of primary-crystal silicon grains located on a slide surface. The plurality of primary-crystal silicon grains have an average crystal grain size of no less than about 12 ?m and no more than about 50 ?m.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: August 3, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hirotaka Kurita, Hiroshi Yamagata, Toshikatsu Koike
  • Patent number: 7757584
    Abstract: A connecting rod made of a titanium alloy is a split-type connecting rod which includes a rod main body, and a big end located at an end of the rod main body, the big end being fracture-split into a rod portion which continues from the end of the rod main body and a cap portion which is coupled to the rod portion. The rod portion and the cap portion each have a fractured surface on which rugged features are present. A difference in height between a highest portion and a lowest portion on each fractured surface is about 230 ?m or more.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: July 20, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Tsuyoshi Kubota, Hiroshi Yamagata
  • Publication number: 20090158887
    Abstract: A connecting rod is a fracture split-type connecting rod made of an ?+? type titanium alloy, including a rod main body and a big end provided at an end of the rod main body, the big end being fracture-split. The structure of the rod main body is an equiaxed ? structure, and the structure of fractured surfaces of the big end is an acicular ? structure.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 25, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kubota, Hiroshi Yamagata
  • Publication number: 20090151689
    Abstract: An internal combustion engine component is composed of an aluminum alloy containing silicon, and includes a plurality of silicon crystal grains located on a slide surface. The slide surface has a ten point-average roughness RzJIS of about 0.54 ?m or more, and a load length ratio Rmr(30) at a cut level of about 30% of the slide surface is about 20% or more.
    Type: Application
    Filed: December 25, 2007
    Publication date: June 18, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Shinya Iwasaki, Hiroshi Yamagata, Hirotaka Kurita
  • Patent number: 7453498
    Abstract: An electronic image capture device for capturing a color image, comprising an image sensor comprised of discrete light sensitive picture elements overlaid with a color filter array (CFA) pattern to produce sensor color image data corresponding to the CFA pattern; an A/D converter for producing uninterpolated digital CFA image data from the sensor color image data; a processor for processing the uninterpolated digital CFA image data to produce interpolated image data and for forming a TIFF image file containing both the uninterpolated CFA image data and the interpolated image data; and a memory for storing the TIFF image file.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: November 18, 2008
    Assignee: Eastman Kodak Company
    Inventors: Wayne E. Prentice, Hiroshi Yamagata, Kenneth A. Parulski
  • Publication number: 20080229877
    Abstract: A crankshaft having a crankpin, a crank journal, and a crank arm for linking the crankpin and the crank journal, includes a pin fillet portion located between the crankpin and the crank arm, and a journal fillet portion located between the crank journal and the crank arm. At least one of the crankpin and the crank journal has a diameter of no less than about 20 mm and no more than about 40 mm. At least one of the pin fillet portion and the journal fillet portion contains a quench-hardened layer having a thickness of no less than about 1 mm and no more than about 2 mm in the vicinity of a surface thereof. The crankpin and the crank journal substantially do not contain any quench-hardened layer having a thickness exceeding about 2 mm in the vicinity of a surface thereof.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Shinya IWASAKI, Hiroshi YAMAGATA, Hirotaka KURITA
  • Patent number: 7412955
    Abstract: An engine component is composed of an aluminum alloy containing silicon, and includes a plurality of primary-crystal silicon grains located on a slide surface. The plurality of primary-crystal silicon grains have an average crystal grain size of no less than about 12 ?m and no more than about 50 ?m.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: August 19, 2008
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hirotaka Kurita, Hiroshi Yamagata, Toshikatsu Koike
  • Publication number: 20080163846
    Abstract: An engine component is composed of an aluminum alloy containing silicon, and includes a plurality of primary-crystal silicon grains located on a slide surface. The plurality of primary-crystal silicon grains have an average crystal grain size of no less than about 12 ?m and no more than about 50 ?m.
    Type: Application
    Filed: March 11, 2008
    Publication date: July 10, 2008
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hirotaka KURITA, Hiroshi YAMAGATA, Toshikatsu KOIKE
  • Patent number: 7390023
    Abstract: A motorcycle fuel tank according to a preferred embodiment of the present invention includes an upper shell, and a lower shell including a body and fixing portions. The lower shell body is bonded to the upper shell and arranged to define a fuel storage space with the upper shell. The fixing portions are used to fix the lower shell body onto a motorcycle body. The lower shell is made of an aluminum alloy and the lower shell body and the fixing portions are formed by a casting process such that the fixing portions are integral with the lower shell.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: June 24, 2008
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Atsushi Hirose, Toru Kitsunai, Hiroshi Yamagata
  • Publication number: 20080012808
    Abstract: The present invention provides a liquid crystal display device which can obviate the generation of leaking of light and display irregularities in the vicinities of so-called dummy pixels. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner with liquid crystal sandwiched therebetween, a plurality of gate signal lines and a plurality of drain signal lines which are formed on one substrate in a matrix array, a plurality of pixel regions defined by the gate signal lines and the drain signal lines, and a reference electrode and a pixel electrode which are formed in the inside of each pixel region. In such a constitution, the plurality of pixel regions are formed in both a display region and a non-display region, and a voltage applied to the reference electrodes is applied to the pixel electrodes in the inside of the pixel regions in the non-display region.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 17, 2008
    Inventors: Nagatoshi Kurahashi, Masahiro Ishii, Hiroshi Yamagata
  • Publication number: 20080010828
    Abstract: A method of making a forged piston includes the steps of providing a workpiece made of an aluminum alloy, a magnesium alloy or a titanium alloy; and forging the workpiece with stress applied thereto in a predetermined direction (forging direction). The method further includes, before the step of forging, the step of working the workpiece such that fiber flows of the workpiece are nonparallel to the predetermined direction.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 17, 2008
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hiroshi YAMAGATA, Hirotaka KURITA
  • Publication number: 20070151409
    Abstract: A connecting rod includes a rod main body, a small end located at one end of the rod main body and a big end located at another end of the rod main body, the big end including a curved section which is curved so as to become narrower toward the rod main body. The big end is formed of a metal material whose composition is different from that of the rod main body, and is bonded to the rod main body. A joint between the big end and the rod main body is located closer to the small end than is an end of the curved section facing the rod main body.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kubota, Hirotaka Kurita, Hiroshi Yamagata
  • Patent number: 7202355
    Abstract: The present invention has for its object to provide a DNA sequence capable of regulating the expression of a desired gene specifically in the fruit of a plant, a plasmid containing that DNA sequence as well as a plant cell, plant body and microorganism transformed with the plasmid. One aspect of the present invention is constituted by a fruit-specific expression-regulating unit DNA sequence which comprises a region comprising the base sequence shown under SEQ ID NO:1.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: April 10, 2007
    Assignee: Kaneka Corporation
    Inventors: Hiroshi Yamagata, Yasuo Aizono, Ayako Hirata
  • Publication number: 20070070085
    Abstract: Disclosed herein is a display image correcting device including, retaining means configured to retain reference correction amount data for correcting nonuniformity as a predetermined factor of an image displayed on a basis of a video signal, the reference correction amount data representing an amount of correction at a predetermined horizontal and vertical position of the image, the amount of correction being obtained in correspondence with a video signal level as a reference, and correcting means configured to perform correction processing on the video signal in correspondence with a horizontal direction and a vertical direction of the image, and a brightness direction, and performing the correction processing on a basis of three-dimensional correction amount data obtained by making two-dimensional correction amount data corresponding to a horizontal and vertical position, the two-dimensional correction amount data being obtained on a basis of the reference correction amount data, linearly proportional or no
    Type: Application
    Filed: September 8, 2006
    Publication date: March 29, 2007
    Applicant: SONY CORPORATION
    Inventors: Hiroshi Yamagata, Yoshiki Shirochi, Toshinari Fuchigami, Akira Shirahama
  • Patent number: 7171012
    Abstract: Affixed in intimate contact to the inside surface of a front board 10a of a conductive capsule 10 provided with a receiving sound aperture 10aa is a conductive back electrode board provided with air vent apertures 11a, 11b which are positioned not in alignment with the receiving sound aperture, these apertures 10a and 11a, 11b being connected by a slit 10ad. A polarized FEP film 12 which is an electret film is disposed on the surface of the back electrode board 11 opposite from the front board 10a, and a conductive diaphragm 14 is disposed on the surface of the FEP 12 opposite from the back electrode board 11 with a spacer 13 interposed therebetween which extends around the outer periphery of the opposite surface of the FEP 12. These component parts are accommodate in the capsule 10 to constitute an electret condenser microphone which is capable of suppressing sensitivity degradation due to ingress of grit from the outside to the electret film.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 30, 2007
    Assignee: Hosiden Corporation
    Inventors: Toshiro Izuchi, Hiroshi Yamagata, Naosuke Fukada, Hideki Kozawa
  • Publication number: 20070012173
    Abstract: An engine component is composed of an aluminum alloy containing silicon, and includes a plurality of primary-crystal silicon grains located on a slide surface. The plurality of primary-crystal silicon grains have an average crystal grain size of no less than about 12 ?m and no more than about 50 ?m.
    Type: Application
    Filed: February 23, 2005
    Publication date: January 18, 2007
    Inventors: Hirotaka Kurita, Hiroshi Yamagata, Toshikatsu Koike
  • Publication number: 20060260433
    Abstract: A connecting rod made of a titanium alloy is a split-type connecting rod which includes a rod main body, and a big end located at an end of the rod main body, the big end being fracture-split into a rod portion which continues from the end of the rod main body and a cap portion which is coupled to the rod portion. The rod portion and the cap portion each have a fractured surface on which rugged features are present. A difference in height between a highest portion and a lowest portion on each fractured surface is about 230 ?m or more.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 23, 2006
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Tsuyoshi KUBOTA, Hiroshi YAMAGATA
  • Publication number: 20060152609
    Abstract: An electronic image capture device for capturing a color image, comprising an image sensor comprised of discrete light sensitive picture elements overlaid with a color filter array (CFA) pattern to produce sensor color image data corresponding to the CFA pattern; an A/D converter for producing uninterpolated digital CFA image data from the sensor color image data; a processor for processing the uninterpolated digital CFA image data to produce interpolated image data and for forming a TIFF image file containing both the uninterpolated CFA image data and the interpolated image data; and a memory for storing the TIFF image file.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 13, 2006
    Inventors: Wayne Prentice, Hiroshi Yamagata, Kenneth Parulski