Patents by Inventor Toshihiko Suzuki

Toshihiko Suzuki 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).

  • Apparatus for recording signals on disk recording medium
    Patent number: 7684680
    Abstract: A recording apparatus of this invention detects the state of management information, which pertains to a recording address of an image signal, and which is reproduced from a disk-like recording medium having a first area for the image signal and a second area for the management information. On the basis of the detection result, management data is reproduced from the first area of the disk-like recording medium. On the basis of the management data reproduced from the first area, the management information reproduced from the second area is modified. A modify unit records the modified management information in the second area.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: March 23, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Suzuki, Hidenori Hoshi, Hiroaki Endo
  • VEHICLE NAVIGATION DEVICE
    Publication number: 20100057347
    Abstract: A vehicle navigation device including a destination setting means that sets a destination; a route searching means that searches for a route to the destination that has been set by the destination setting means; and a search condition setting means that sets a specified search condition from a plurality of conditions that include a type of facility serving as a search object and an area serving as a search object, in which the route searching means, in the case of an input operation of a specified search condition being performed by the user, searches for a waypoint and a route thereof based on the search condition.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kenji Sugiyama, Yasuhiro Konishi, Toshihiko Suzuki
  • OPTICAL WAVEGUIDE WITH POSITION RECOGNITION MARK AND METHOD FOR PRODUCING THE SAME
    Publication number: 20100040337
    Abstract: An optical waveguide includes: a core portion through which light propagates, a cladding portion enclosing the core portion along a direction of light propagation, and a colored resin for position recognition marking, the optical waveguide having substantially planar outer surfaces including principal surfaces thereof, and the colored resin being embedded in the optical waveguide at a position that does not substantially overlap the core portion when viewed from a direction perpendicular to a principal surface of the optical waveguide and does not substantially contact the core portion.
    Type: Application
    Filed: February 2, 2009
    Publication date: February 18, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Toshihiko SUZUKI, Keishi SHIMIZU, Akira FUJII, Kazutoshi YATSUDA, Masahiro IGUSA, Shigemi OHTSU
  • Gas sensor
    Patent number: 7655123
    Abstract: A gas sensor comprising a first measuring chamber for introducing a gas to be measured, a second measuring chamber for detection of the gas to be measured, and as pump cells a first pump cell having a pair of pump electrodes, and a second pump cell having a measuring electrode and an auxiliary pump electrode, wherein a porous alumina sintered body having communicating pores of 500-1100 ? in average pore diameter and 6-16% in porosity is formed as an electrode protective layer on the surface of at least the measuring electrode of the second pump cell in such a manner that the alumina sintered body covers the measuring electrode. The gas sensor can be use for long period of time because of the protective layer.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 2, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Atsushi Sakon, Osamu Nakasone, Kaori Takahashi, Toshihiko Suzuki
  • OPTICAL WAVEGUIDE FILM AND OPTICAL TRANSMITTER AND RECEIVER MODULE
    Publication number: 20100021109
    Abstract: An optical waveguide includes: an optical waveguide core through which light propagates, at least one end portion of the optical waveguide core in a longitudinal direction thereof having an inclined surface; a reflective layer provided on the inclined surface and formed by a metal layer of silver or a silver alloy; a protective layer disposed to cover the reflective layer; and a cladding portion enclosing the optical waveguide core and having a lower refractive index than that of the optical waveguide core.
    Type: Application
    Filed: February 5, 2009
    Publication date: January 28, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigemi OHTSU, Akira Fujii, Kazutoshi YATSUDA, Masahiro IGUSA, Toshihiko SUZUKI, Keishi SHIMIZU
  • OPTICAL WAVEGUIDE FILM, METHOD OF PRODUCING THE SAME, AND OPTICAL TRANSMITTER AND RECEIVER MODULE
    Publication number: 20100021119
    Abstract: An optical waveguide film includes: an optical waveguide film main body including an optical waveguide core through which light travels and a cladding portion that surrounds the optical waveguide core and has a lower refractive index than that of the optical waveguide core; an electric wiring portion including silver or a silver alloy and formed on at least a part of a principal surface of the optical waveguide film main body; and a protective layer including a titanium layer or a titanium alloy layer and disposed to cover the electric wiring portion.
    Type: Application
    Filed: March 17, 2009
    Publication date: January 28, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigemi Ohtsu, Akira Fujii, Kazutoshi Yatsuda, Masahiro Igusa, Toshihiko Suzuki, Keishi Shimizu
  • Polymer optical waveguide and method for manufacturing the same
    Patent number: 7653280
    Abstract: A polymer optical waveguide includes: an optical waveguide portion that includes a core and a cladding each formed of polymer material; and a conductive line that is installed along the core integrally with the optical waveguide portion, and that has an electrode surface for external connection exposed on a surface different from an end surface of the optical waveguide portion.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: January 26, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Fujii, Keishi Shimizu, Shigemi Ohtsu, Kazutoshi Yatsuda, Toshihiko Suzuki, Eiichi Akutsu
  • Flexible optical waveguide film, optical transceiver module, multi-channel optical transceiver module, and method of manufacturing flexible optical waveguide film
    Patent number: 7646948
    Abstract: A flexible optical waveguide film comprises: two waveguide cores; and a clad surrounding the two waveguide core, wherein a light entrance/exit part is disposed at one end of each of the two waveguide cores, the waveguide film having an optical path converting part comprising an air void located inside the waveguide film, and a light entrance/exit end face of the light entrance/exit part is a plane surface facing an optical path converting surface of the optical path converting part, the optical path converting surface being an interface defining the air void.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: January 12, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigemi Ohtsu, Toshihiko Suzuki, Akira Fujii, Kazutoshi Yatsuda, Keishi Shimizu, Eiichi Akutsu
  • OPTICAL RECORDING-REPRODUCING APPARATUS
    Publication number: 20090296550
    Abstract: An optical recording-reproducing apparatus comprises a laser beam source; an objective lens for focusing a laser beam from the laser beam source on a disk medium; an actuator for positional control of the objective lens; a tilt-compensating mechanism for adjusting inclination of the objective lens relative to the disk medium; a detecting element for detecting an amount of a change of the power of the laser beam for recording of information on the disk medium, wherein the tilt-compensating mechanism adjusts inclination of the objective lens according to the amount of the change of the power of the laser beam when the recording is carried out.
    Type: Application
    Filed: May 13, 2009
    Publication date: December 3, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Toshihiko Suzuki
  • Optical waveguide with a colored layer and method for manufacturing the same
    Patent number: 7620285
    Abstract: The present invention provides an optical waveguide including: a cladding; at least one core embedded in the cladding; and a colored layer that is provided at a portion substantially overlapping with the core when viewed from a direction substantially perpendicular to the principal surfaces of the optical waveguide, and that is not in contact with the core.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: November 17, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toshihiko Suzuki, Shigemi Ohtsu, Keishi Shimizu, Kazutoshi Yatsuda, Akira Fujii, Eiichi Akutsu
  • Optical substrate, optical waveguide, and optical waveguide substrate
    Patent number: 7616852
    Abstract: An optical substrate includes: a submount; a planar optical element which is mounted on the submount; a pair of positioning members which are disposed at an interval across the planar optical element on the submount; an optical waveguide in which a core and a clad are formed by a flexible material; and a holding member which holds the optical waveguide to allow a tip end of the optical waveguide to be inserted between the pair of positioning members, and the optical waveguide to be bent to extend parallel to the submount.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: November 10, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigemi Ohtsu, Toshihiko Suzuki, Akira Fujii, Kazutoshi Yatsuda, Keishi Shimizu, Eiichi Akutsu
  • RETARDATION FILM AND METHOD FOR PRODUCTION THEREOF
    Publication number: 20090227756
    Abstract: The present invention provides a method for producing a retardation film of a polypropylene resin, the method comprising subjecting a film of a polypropylene resin to longitudinal stretching and transverse stretching which are performed sequentially, wherein the transverse stretching comprises the following steps, and a polypropylene resin retardation film which is obtained by such a method and has both a high axial retardation and a uniform retardation: a step of preheating the film at a preheating temperature which is equal to or higher than the melting point of the polypropylene resin; a step of stretching the preheated film in the transverse direction at a stretching temperature which is lower than the preheating temperature; and a step of heat setting the film stretched in the transverse direction.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 10, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kyoko Hino, Toshihiko Suzuki, Hiroaki Takahata
  • Information recording apparatus
    Patent number: 7573796
    Abstract: Provided is an information recording apparatus including: a memory for storing image pickup data; a recording circuit for intermittently recording the image pickup data stored in the memory on a disc-like medium from the memory; a setting circuit for setting an ejection mode of the disc-like medium; and a control circuit for ejecting the disc-like medium without recording the image pickup data stored in the memory on the disc-like medium when a first ejection mode is set by the setting circuit. The apparatus enables to immediately remove a disk-like medium.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: August 11, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshihiko Suzuki
  • Optical reception and transmission module
    Patent number: 7568846
    Abstract: An optical waveguide film of an optical reception and transmission module guides light. A first optical path converting part of an optical transmission unit guides light. A mirror surface of a first optical path converting part bends light which is emitted from a light emitting element and which enters the first optical path converting part. A first holding member holds the light emitting element and the first optical path converting part. A second optical path converting part of an optical reception unit guides light. A mirror surface of a second optical path converting part bends the guided light. A second holding member holds the light receiving element and the second optical path converting part. A first supporting member supports the first end portion of the optical waveguide film. A second supporting member supports the second end portion of the optical waveguide film.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: August 4, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigemi Ohtsu, Toshihiko Suzuki, Masahiro Igusa, Kazutoshi Yatsuda, Akira Fujii, Keishi Shimizu, Eiichi Akutsu
  • APPARATUS FOR RECORDING SIGNALS ON DISK RECORDING MEDIUM
    Publication number: 20090180764
    Abstract: A recording apparatus of this invention detects the state of management information, which pertains to a recording address of an image signal, and which is reproduced from a disk-like recording medium having a first area for the image signal and a second area for the management information. On the basis of the detection result, management data is reproduced from the first area of the disk-like recording medium. On the basis of the management data reproduced from the first area, the management information reproduced from the second area is modified. A modify unit records the modified management information in the second area.
    Type: Application
    Filed: April 3, 2009
    Publication date: July 16, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshihiko Suzuki, Hidenori Hoshi, Hiroaki Endo
  • Optical waveguide, method of manufacturing the same and optical communication module
    Patent number: 7561773
    Abstract: An optical waveguide includes: a lower substrate; a waveguide core that is formed on the lower substrate; a clad that is formed to surround a periphery of the waveguide core; and an upper substrate that is opposed to the lower substrate, wherein the waveguide cores, the lower substrate and the upper substrate surround a cavity extended along the waveguide core.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: July 14, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Fujii, Toshihiko Suzuki, Keishi Shimizu, Kazutoshi Yatsuda, Shigemi Ohtsu, Eiichi Akutsu
  • IMAGE DATA COMPRESSOR AND IMAGE DATA DECOMPRESSOR
    Publication number: 20090154817
    Abstract: In a data decompressor, a variable length decoding unit extracts a variable length code from compressed image data, performs variable length decoding of the extracted variable length code, and restores quantized data before the variable length encoding was applied. An inverse quantization unit performs inverse quantization on the restored quantized data to generate orthogonal transform coefficients of each block and writes the generated orthogonal transform coefficients to a memory. An inverse orthogonal transform unit reads the orthogonal transform coefficients of each block from the memory and performs an inverse transform of the orthogonal transform performed by a data compressor on the orthogonal transform coefficients to thereby restore an image of each block.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 18, 2009
    Applicant: YAMAHA CORPORATION
    Inventor: Toshihiko Suzuki
  • Lens-incorporating optical waveguide, and method for manufacturing the same
    Patent number: 7546010
    Abstract: A lens-incorporating optical waveguide includes: a core; a clad enclosing the cores; and a lens provided in the core so as to cross a propagating direction of light.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: June 9, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Fujii, Toshihiko Suzuki, Keishi Shimizu, Kazutoshi Yatsuda, Shigemi Ohtsu, Eiichi Akutsu
  • Optical reception and transmission module
    Patent number: 7542647
    Abstract: An optical transmission unit of an optical reception and transmission module holds a first end portion of the optical waveguide film on the first holding member so that light emitted from the light emitting device is coupled to an incident end surface of the optical waveguide. An optical reception unit holds a second end portion of the optical waveguide film on the second holding member so that light emitted from an emitting end surface of the optical waveguide is received by the light receiving device. At least the optical waveguide film is covered with flame-retardant resin having flame retardancy of HB or higher according to a UL-94 test and a minimum bending radius of the optical waveguide film covered with the flame-retardant resin and having a flame-retardant resin layer formed on its surface is from 1 mm to 3 mm.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: June 2, 2009
    Assignee: Fuji Xerox Co, Ltd.
    Inventors: Shigemi Ohtsu, Toshihiko Suzuki, Keishi Shimizu, Kazutoshi Yatsuda, Masahiro Igusa, Akira Fujii, Eiichi Akutsu
  • Optical waveguide and method of manufacturing the same
    Patent number: 7542646
    Abstract: There is provided an optical waveguide including: a waveguide core through which light propagates; a cavity that is present inside the waveguide core so as to be open at least one end in the thickness direction of the waveguide core; a layer-form first cladding having a lower refractive index than the waveguide core, and sealing at least one of the at least one opening of the cavity to thereby close the opening of the cavity; and a second cladding having a lower refractive index than the waveguide core, and surrounding the waveguide core. There is also provided a method of manufacturing the optical waveguide.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 2, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Fujii, Toshihiko Suzuki, Keishi Shimizu, Kazutoshi Yatsuda, Shigemi Ohtsu, Eiichi Akutsu