Patents by Inventor Koji Takayama

Koji Takayama 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: 11971668
    Abstract: An electrophotographic roller comprising a substrate and a foam layer on an outer peripheral surface of the substrate, the foam layer constituting an outer surface of the electrophotographic roller, the foam layer comprising cells each of which opens on the outer surface, and the foam layer having a zero-point charge measured using a standard carrier of 40 ?C/g or more.
    Type: Grant
    Filed: April 6, 2023
    Date of Patent: April 30, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryosuke Takayama, Hiroaki Komatsu, Koji Yatsu, Seiji Tsuru
  • Patent number: 11076233
    Abstract: Provided is a sound generation device wherein noise can be reduced in accordance with a predetermined frequency band. An elastic member (8) is provided to obtain a sound pressure characteristic having a sub-peak at a predetermined frequency on the lower side than a lowest resonance frequency, and a phase characteristic such that a change rate of phase difference is lowered around the predetermined frequency. When the phase characteristic is calculated by simulation or actually measured in advance and an input signal is controlled such that the generated sound has an opposite phase to the noise, the generated sound can be made less prone to deviate from the opposite phase to the noise even if a time difference is caused between noise sound collection and sound generation at around the predetermined frequency, with the result that the noise can be effectively reduced.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: July 27, 2021
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Satoru Hiwatari, Hiroyuki Dohi, Koji Takayama, Hiroyuki Kobayashi
  • Patent number: 10623631
    Abstract: Imaging apparatus includes storage that records registration information, including face information, for personal authentication, setting unit that selects a security mode from a plurality of security modes, imaging unit that generates first image data from optical information, detector that detects a face of a subject within the first image data and detects the security-protection target according to a result from a comparison between the face detected and the face information recorded, image processor that executes the security-protection process on the security-protection target detected by detector to generate second image data, and controller that controls detector and image processor in accordance with the security mode selected. The plurality of security modes include a first security mode and a second security mode.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 14, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Koji Takayama
  • Patent number: 10277976
    Abstract: Provided is a speaker device achieving thinning and cost reduction. The speaker device includes a first speaker unit and a second speaker unit. An outer peripheral side of the speaker unit is provided with a folded portion protruding to an opposite side of a sound emission direction P. A flat portion is provided inside the folded portion. An opening is provided inside the flat portion. A voice coil bobbin is secured to the opening. A speaker unit is arranged in the voice coil bobbin. An external-magnet-type magnetic circuit is provided in the speaker unit. As a magnet of the magnetic circuit, a ferrite magnet having a large volume is used.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 30, 2019
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Kenichi Oshima, Koji Takayama, Hirohito Ohno, Hiroyuki Dohi, Hayami Kondo
  • Patent number: 10264347
    Abstract: Provided is a speaker device achieving thinning and cost reduction. The speaker device includes a first speaker unit having a first diaphragm connected to a voice coil bobbin, and a second speaker unit having a second diaphragm provided inside the voice coil bobbin. When a sound emission direction P of the first speaker unit and the second speaker unit is upward and an opposite direction of the sound emission direction P is downward, a position of an upper end A of the first diaphragm is substantially equal to an upper end B of the second diaphragm.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 16, 2019
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Kenichi Oshima, Koji Takayama, Hirohito Ohno, Hiroyuki Dohi, Hayami Kondo
  • Patent number: 10148844
    Abstract: An imaging apparatus includes an optical system, an imaging unit that captures a subject image which is input via the optical system and generates an image signal, an image processor that performs predetermined processing on the image signal generated by the imaging unit and generates image data, a display unit that displays an image represented by the image data, and a control unit that controls the image processor and the display unit. The control unit records moving image data and generates, from all or a part of a plurality of frame images composing recorded moving image data, a still image based on user's specifying of an image or an area of the image. The display unit displays one frame image among the plurality of frame images composing the recorded moving image data, as a setting image for the user to specify an image or an area of the image, and adds highlighting to an in-focus portion in the setting image.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: December 4, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuyoshi Okamoto, Tomohiro Oogami, Kohei Fukugawa, Koji Takayama
  • Publication number: 20180295280
    Abstract: Imaging apparatus includes storage that records registration information, including face information, for personal authentication, setting unit that selects a security mode from a plurality of security modes, imaging unit that generates first image data from optical information, detector that detects a face of a subject within the first image data and detects the security-protection target according to a result from a comparison between the face detected and the face information recorded, image processor that executes the security-protection process on the security-protection target detected by detector to generate second image data, and controller that controls detector and image processor in accordance with the security mode selected. The plurality of security modes include a first security mode and a second security mode.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Inventor: KOJI TAKAYAMA
  • Publication number: 20180270579
    Abstract: Provided is a sound generation device wherein noise can be reduced in accordance with a predetermined frequency band. An elastic member (8) is provided to obtain a sound pressure characteristic having a sub-peak at a predetermined frequency on the lower side than a lowest resonance frequency, and a phase characteristic such that a change rate of phase difference is lowered around the predetermined frequency. When the phase characteristic is calculated by simulation or actually measured in advance and an input signal is controlled such that the generated sound has an opposite phase to the noise, the generated sound can be made less prone to deviate from the opposite phase to the noise even if a time difference is caused between noise sound collection and sound generation at around the predetermined frequency, with the result that the noise can be effectively reduced.
    Type: Application
    Filed: September 13, 2016
    Publication date: September 20, 2018
    Inventors: Satoru HIWATARI, Hiroyuki DOHI, Koji TAKAYAMA, Hiroyuki KOBAYASHI
  • Publication number: 20170359647
    Abstract: Provided is a speaker device achieving thinning and cost reduction. The speaker device includes a first speaker unit having a first diaphragm connected to a voice coil bobbin, and a second speaker unit having a second diaphragm provided inside the voice coil bobbin. When a sound emission direction P of the first speaker unit and the second speaker unit is upward and an opposite direction of the sound emission direction P is downward, a position of an upper end A of the first diaphragm is substantially equal to an upper end B of the second diaphragm.
    Type: Application
    Filed: December 8, 2015
    Publication date: December 14, 2017
    Inventors: Kenichi OSHIMA, Koji TAKAYAMA, Hirohito OHNO, Hiroyuki DOHI, Hayami KONDO
  • Publication number: 20170347184
    Abstract: Provided is a speaker device achieving thinning and cost reduction. The speaker device includes a first speaker unit and a second speaker unit. An outer peripheral side of the speaker unit is provided with a folded portion protruding to an opposite side of a sound emission direction P. A flat portion is provided inside the folded portion. An opening is provided inside the flat portion. A voice coil bobbin is secured to the opening. A speaker unit is arranged in the voice coil bobbin. An external-magnet-type magnetic circuit is provided in the speaker unit. As a magnet of the magnetic circuit, a ferrite magnet having a large volume is used.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 30, 2017
    Inventors: Kenichi OSHIMA, Koji TAKAYAMA, Hirohito OHNO, Hiroyuki DOHI, Hayami KONDO
  • Publication number: 20170264773
    Abstract: An imaging apparatus includes an optical system, an imaging unit that captures a subject image which is input via the optical system and generates an image signal, an image processor that performs predetermined processing on the image signal generated by the imaging unit and generates image data, a display unit that displays an image represented by the image data, and a control unit that controls the image processor and the display unit. The control unit records moving image data and generates, from all or a part of a plurality of frame images composing recorded moving image data, a still image based on user's specifying of an image or an area of the image. The display unit displays one frame image among the plurality of frame images composing the recorded moving image data, as a setting image for the user to specify an image or an area of the image, and adds highlighting to an in-focus portion in the setting image.
    Type: Application
    Filed: November 3, 2016
    Publication date: September 14, 2017
    Inventors: Mitsuyoshi OKAMOTO, Tomohiro OOGAMI, Kohei FUKUGAWA, Koji TAKAYAMA
  • Patent number: 9438790
    Abstract: The present technique has a face detection unit configured to detect a face region which is determined as a face in an image, a position specifying unit configured to specify a particular position in the image, a range specifying unit configured to set a hue range which has a first range containing a hue at a position specified by the position specifying unit in a case where the position specified by the position specifying unit is not contained in the face region and to set a hue range which has a second range containing a hue at a position specified by the position specifying unit and wider than the first range in a case where the position specified by the position specifying unit contains the face region, and image processing unit for performing image conversion processing based on color information contained in the hue range.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Koji Takayama
  • Patent number: 9118836
    Abstract: An imaging device which can more reliably guide eye lines of a subject to a lens even when the subject is a child or an infant is provided. The imaging device according to the present disclosure includes: an optical system; an imaging sensor which captures a subject image condensed by the optical system; a monitor which displays the captured subject image; and a controller which displays an on-screen display (OSD), which moves in a center direction of the optical system, on a display surface of the monitor oriented toward a subject before start of shooting a still image of a subject or during shooting of a moving image.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: August 25, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Koji Takayama
  • Patent number: 9100628
    Abstract: The present technique has a face detection unit configured to detect a face region which is determined as a face in an image, a position specifying unit configured to specify a particular position in the image, a range specifying unit configured to determine a first range as a range for calculating an evaluation value of a hue and to set a hue at a position specified by the position specifying unit in a case where the position is not contained in the face region, and to determine a second range as a range for calculating an evaluation value of a hue and to set a hue at a position specified by the position specifying unit in a case where the position contains the face region, and image processing unit for performing image conversion processing based on color information contained in the hue range.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 4, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Koji Takayama
  • Patent number: 9030574
    Abstract: An imaging apparatus includes an imaging sensor operable to capture a subject image and output image information, a gain setting unit operable to set a value of an output signal amplification gain according to a value of ISO sensitivity for amplifying the image information output from the imaging sensor, a determination unit operable to determine a value of white balance gain to be used for white balance correction according to the value of the output signal amplification gain set by the gain setting unit, and a white balance correcting unit operable to perform white balance correction on the image information output from the imaging sensor based on the value of the output signal amplification gain set by the setting unit and the value of the white balance gain determined by the determination unit.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: May 12, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Koji Takayama, Mariko Yamazaki
  • Publication number: 20150098001
    Abstract: An imaging device which can more reliably guide eye lines of a subject to a lens even when the subject is a child or an infant is provided. The imaging device according to the present disclosure includes: an optical system; an imaging sensor which captures a subject image condensed by the optical system; a monitor which displays the captured subject image; and a controller which displays an on-screen display (OSD), which moves in a center direction of the optical system, on a display surface of the monitor oriented toward a subject before start of shooting a still image of a subject or during shooting of a moving image.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 9, 2015
    Inventor: Koji TAKAYAMA
  • Publication number: 20140285674
    Abstract: The present technique has a face detection unit configured to detect a face region which is determined as a face in an image, a position specifying unit configured to specify a particular position in the image, a range specifying unit configured to set a hue range which has a first range containing a hue at a position specified by the position specifying unit in a case where the position specified by the position specifying unit is not contained in the face region and to set a hue range which has a second range containing a hue at a position specified by the position specifying unit and wider than the first range in a case where the position specified by the position specifying unit contains the face region, and image processing unit for performing image conversion processing based on color information contained in the hue range.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 25, 2014
    Applicant: PANASONIC CORPORATION
    Inventor: Koji TAKAYAMA
  • Publication number: 20140285682
    Abstract: The present technique has a face detection unit configured to detect a face region which is determined as a face in an image, a position specifying unit configured to specify a particular position in the image, a range specifying unit configured to determine a first range as a range for calculating an evaluation value of a hue and to set a hue at a position specified by the position specifying unit in a case where the position is not contained in the face region, and to determine a second range as a range for calculating an evaluation value of a hue and to set a hue at a position specified by the position specifying unit in a case where the position contains the face region, and image processing unit for performing image conversion processing based on color information contained in the hue range.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 25, 2014
    Applicant: PANASONIC CORPORATION
    Inventor: Koji TAKAYAMA
  • Patent number: 8235167
    Abstract: A speaker vibrating body vibrated by a driving part includes a plurality of diaphragms vibratably supported by a static part supporting said driving part and a diaphragm connecting part, provided between a first diaphragm and a second diaphragm among said plurality of diaphragms, coupling said first diaphragm and said second diaphragm and synchronously moving said first diaphragm and said second diaphragm toward or away from each other.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: August 7, 2012
    Assignees: Pioneer Corporation, Tohoku Pioneer Corporation
    Inventors: Hiroyuki Kobayashi, Toshihiro Hikichi, Takuei Nagasawa, Koji Takayama, Koji Maekawa, Kenichi Oshima, Yasuhisa Abe, Minoru Horigome
  • Publication number: 20120105669
    Abstract: An imaging apparatus includes an imaging sensor operable to capture a subject image and output image information, a gain setting unit operable to set a value of an output signal amplification gain according to a value of ISO sensitivity for amplifying the image information output from the imaging sensor, a determination unit operable to determine a value of white balance gain to be used for white balance correction according to the value of the output signal amplification gain set by the gain setting unit, and a white balance correcting unit operable to perform white balance correction on the image information output from the imaging sensor based on the value of the output signal amplification gain set by the setting unit and the value of the white balance gain determined by the determination unit.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: KOJI TAKAYAMA, MARIKO YAMAZAKI