Patents by Inventor Tamotsu Ikeda

Tamotsu Ikeda 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: 9905151
    Abstract: A display panel includes a plurality of first unit pixels, each including: a data input terminal, a data output terminal, a display element, and a waveform shaping section. The display element is configured to perform display based on data inputted to the data input terminal. The first waveform shaping section is provided on a signal path from the data input terminal to the data output terminal.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 27, 2018
    Assignee: SONY CORPORATION
    Inventors: Hideyuki Suzuki, Toshiyuki Miyauchi, Yosuke Ueno, Yoshifumi Miyajima, Masayuki Hattori, Kazukuni Takanohashi, Haruo Togashi, Tamotsu Ikeda, Hiizu Ootorii, Sachiya Tanaka
  • Patent number: 9817347
    Abstract: A fixing device includes a drive roller, a driven roller driven to rotate by the drive roller, and a braking force applicator. The driven roller presses against the drive roller to form an area of contact between the drive roller and the driven roller, through which a recording medium bearing a toner image passes. The braking force applicator applies a braking force to the driven roller to generate a shear force between the drive roller and the driven roller. The shear force acting between the drive roller and the driven roller when the drive roller and the driven roller rotate is in a range of from 15N to 25N.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 14, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiko Fujii, Masahiro Samei, Tamotsu Ikeda, Yoshihiro Fukuhata, Minoru Toyoda, Yoshiharu Takahashi, Daisuke Inoue
  • Publication number: 20170237588
    Abstract: The present technology relates to a signal processing apparatus and method which can suppress increase in power consumption. In an aspect of the present technology, control data, which is for controlling frequency modulation to a carrier signal using digital data to be transmitted, and for suppressing a time average of a fluctuation amount of a frequency modulation amount more than a case of controlling the frequency modulation to the carrier signal using the digital data is generated, the frequency modulation is performed to the carrier signal on the basis of the generated control data, and the carrier signal to which the frequency modulation is performed is transmitted as a transmission signal. The present technology can be applied to, for example, a signal processing apparatus, a transmission apparatus, a reception apparatus, a communication apparatus, or an electronic apparatus having a transmission function, a reception function, or a communication function, or a computer which controls these.
    Type: Application
    Filed: August 11, 2015
    Publication date: August 17, 2017
    Applicant: Sony Corporation
    Inventors: Seiji Kobayashi, Toshiyuki Hiroi, Katsuyuki Tanaka, Tamotsu Ikeda, Hitoshi Tomiyama, Makoto Sato, Hiroyuki Mita
  • Patent number: 9690242
    Abstract: A fixing device includes a first rotary body, a second rotary body to contact the first rotary body, and a plain bearing that supports the first rotary body or the second rotary body. One rotary body of the first rotary body and the second rotary body has an outer diameter increasing, while the other rotary body has an outer diameter decreasing, in a curved line from an axial center portion to axial end portions of the first rotary body and the second rotary body at least between the first rotary body and the second rotary body. A recording medium passes between the first rotary body and the second rotary body with a circumferential component of a shear force generated between the first rotary body and the second rotary body by use of the plain bearing being in a range of from 15N to 25N.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 27, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Samei, Tomohiko Fujii, Yoshihiro Fukuhata, Tamotsu Ikeda, Minoru Toyoda, Yoshiharu Takahashi, Daisuke Inoue
  • Publication number: 20170045850
    Abstract: A fixing device includes a drive roller, a driven roller driven to rotate by the drive roller, and a braking force applicator. The driven roller presses against the drive roller to form an area of contact between the drive roller and the driven roller, through which a recording medium bearing a toner image passes. The braking force applicator applies a braking force to the driven roller to generate a shear force between the drive roller and the driven roller. The shear force acting between the drive roller and the driven roller when the drive roller and the driven roller rotate is in a range of from 15N to 25N.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 16, 2017
    Inventors: Tomohiko FUJII, Masahiro Samei, Tamotsu Ikeda, Yoshihiro Fukuhata, Minoru Toyoda, Yoshiharu Takahashi, Daisuke Inoue
  • Publication number: 20170003634
    Abstract: A fixing device includes a first rotary body, a second rotary body to contact the first rotary body, and a plain bearing that supports the first rotary body or the second rotary body. One rotary body of the first rotary body and the second rotary body has an outer diameter increasing, while the other rotary body has an outer diameter decreasing, in a curved line from an axial center portion to axial end portions of the first rotary body and the second rotary body at least between the first rotary body and the second rotary body. A recording medium passes between the first rotary body and the second rotary body with a circumferential component of a shear force generated between the first rotary body and the second rotary body by use of the plain bearing being in a range of from 15N to 25N.
    Type: Application
    Filed: June 24, 2016
    Publication date: January 5, 2017
    Inventors: Masahiro SAMEI, Tomohiko FUJII, Yoshihiro FUKUHATA, Tamotsu IKEDA, Minoru TOYODA, Yoshiharu TAKAHASHI, Daisuke INOUE
  • Patent number: 9495911
    Abstract: A display panel includes: a driver section configured to generate a first pixel packet including digital luminance data; a plurality of unit pixels successively connected, each of the unit pixels configured to perform a display operation, based on the digital luminance data of the first pixel packet, and one or more of the unit pixels configured to perform a detection operation of a physical quantity thereof to generate a second pixel packet including digital detection data acquired by the detection operation and then output the second pixel packet to a subsequent one of the unit pixels; and a receiver section configured to receive the second pixel packet.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 15, 2016
    Assignee: Sony Corporation
    Inventors: Kazukuni Takanohashi, Hideyuki Suzuki, Kazunori Yasuda, Toshiyuki Miyauchi, Tamotsu Ikeda
  • Patent number: 9491413
    Abstract: Disclosed herein is an imaging apparatus including: an imaging portion capturing an image of a subject, thereby acquiring a video signal; a first coding portion compression-coding the video signal through intra-frame compression and inter-frame compression, thereby generating a first coded signal; a second coding portion compression-coding the video signal through the intra-frame compression, thereby generating a second coded signal an amount of information on which is less than that of the first coded signal; and a signal sending portion sending the first coded signal and the second coded signal to a coaxial cable.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 8, 2016
    Assignee: Sony Corporation
    Inventors: Hideyuki Matsumoto, Tamotsu Ikeda
  • Publication number: 20160313684
    Abstract: A heater includes a tubular bulb and a filament disposed inside the bulb and extended in a longitudinal direction of the bulb. A first metallic foil is coupled to one lateral end of the filament in the longitudinal direction of the bulb. A second metallic foil is coupled to another lateral end of the filament in the longitudinal direction of the bulb. A first wire is coupled to the first metallic foil at a first contact. The first wire extends from the first contact in an intersecting direction intersecting the longitudinal direction of the bulb. A second wire is coupled to the second metallic foil at a second contact.
    Type: Application
    Filed: April 6, 2016
    Publication date: October 27, 2016
    Applicant: Ricoh Company, Ltd.
    Inventor: Tamotsu Ikeda
  • Patent number: 9424773
    Abstract: A display panel includes: a display section including a plurality of unit pixels; and a display drive section configured to generate first pixel packets and supply the first pixel packets to the display section, the first pixel packets each including luminance data of a digital signal, the pieces of luminance data determining respective luminances of respective predetermined number of unit pixels of the plurality of unit pixels, and the first pixel packets being equal in number to the predetermined number of unit pixels.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: August 23, 2016
    Assignee: Sony Corporation
    Inventors: Kazukuni Takanohashi, Hideyuki Suzuki, Toshiyuki Miyauchi, Tamotsu Ikeda
  • Publication number: 20160173813
    Abstract: Disclosed herein is an image transmission system including a plurality of cameras and a coaxial cable for transmitting image signals from the cameras, wherein: each of the cameras includes an imaging block configured to acquire an image signal by imaging an object, a coding block configured to compression-code the image signal through intra-frame compression and inter-frame compression so as to generate a coded signal, and a signal output block configured to output the coded signal onto the coaxial cable; and the camera of interest outputs the coded signal obtained through inter-frame compression onto the coaxial cable when another of the cameras outputs the coded signal obtained through intra-frame compression onto the coaxial cable.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 16, 2016
    Inventors: Hideyuki MATSUMOTO, Tamotsu IKEDA, Tetsuya NARITA
  • Patent number: 9294735
    Abstract: Disclosed herein is an image transmission system including a plurality of cameras and a coaxial cable for transmitting image signals from the cameras, wherein: each of the cameras includes an imaging block configured to acquire an image signal by imaging an object, a coding block configured to compression-code the image signal through intra-frame compression and inter-frame compression so as to generate a coded signal, and a signal output block configured to output the coded signal onto the coaxial cable; and the camera of interest outputs the coded signal obtained through inter-frame compression onto the coaxial cable when another of the cameras outputs the coded signal obtained through intra-frame compression onto the coaxial cable.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: March 22, 2016
    Assignee: SONY CORPORATION
    Inventors: Hideyuki Matsumoto, Tamotsu Ikeda, Tetsuya Narita
  • Patent number: 9294593
    Abstract: An electronic apparatus including a synthesized stream creation unit, a stream transmission unit, a process information retaining unit, a count information addition unit, a stream reception unit, and a processing unit is provided. The electronic apparatus enables synthesis of a plurality of streams into one stream and then transmission of the stream with external devices. A stream transmission and reception method of the electronic apparatus, a program, a host device, a stream transmission and reception method of the host device are also provided.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: March 22, 2016
    Assignee: Sony Corporation
    Inventors: Yuichi Hirayama, Satoshi Okada, Tamotsu Ikeda, Naomichi Kishimoto
  • Patent number: 9270394
    Abstract: The present invention relates to a transmission device that enables transmission and reception of connected transmission channels in a 13-segment format and a transmission method of the transmission device, and to a reception device. The transmission device transmits connected transmission information that indicates that connected transmission of a plurality of transmission channels is being performed, and includes a field indicating that a 13-segment format is at least one segment format among the transmission channels being subjected to the connected transmission. The reception device receives the connected transmission information transmitted by the transmission device. The present invention can be applied to transmission devices that transmit terrestrial digital broadcast signals, for example.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: February 23, 2016
    Assignee: SONY CORPORATION
    Inventors: Tamotsu Ikeda, Takuya Okamoto
  • Patent number: 9265007
    Abstract: The present technique relates to a transmission device, a transmission method, a reception device, a reception method, and a program capable of reducing interference to an adjacent channel in a case where connected-transmission is performed. A transmission device according to an aspect of the present technique includes a signal generating unit configured to generate a plurality of signals having a predetermined frequency bandwidth, a power adjusting unit configured to adjust power of signals so that the power of a signal transmitted using a frequency band close to an end of a channel is less than the power of the signal transmitted using a frequency band close to a center of the channel, and a transmission unit configured to use the channel to transmit, in a connected manner, the signals of which powers have been adjusted. The present technique can be applied to a transmission device for performing connected-transmission.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: February 16, 2016
    Assignee: SONY CORPORATION
    Inventors: Tamotsu Ikeda, Takuya Okamoto, Takashi Yokokawa, Hidetoshi Kawauchi
  • Publication number: 20150371591
    Abstract: A display panel includes a plurality of first unit pixels (Pix) each including: a first data input terminals (PDIN); a first data output terminal (PDOUT); a display element (48); and a first waveform shaping section (42, 22), in which the display element (48) is configured to perform display based on first data (PD) inputted to the first data input terminal (PDIN), and the first waveform shaping section (42, 44) is provided on a signal path from the first data input terminal (PDIN) to the first data output terminal (PDOUT).
    Type: Application
    Filed: December 20, 2013
    Publication date: December 24, 2015
    Inventors: Hideyuki SUZUKI, Toshiyuki MIYAUCHI, Yosuke UENO, Yoshifumi MIYAJIMA, Masayuki HATTORI, Kazukuni TAKANOHASHI, Haruo TOGASHI, Tamotsu IKEDA, Hiizu OOTORII, Sachiya TANAKA
  • Patent number: 9217989
    Abstract: A process unit includes a rotatable image bearer to bear a toner image on a surface thereof; a developer bearer to supply developer to the image bearer and including a first range, a second range different in property from the first range and adjacent to the first range on an outer side in an axial direction via a first boundary, and a second boundary on an outer side of the first boundary in the axial direction; a cleaning member to remove residual developer from the image bearer; and an abutment part disposed to contact the surface of the image bearer to remove a foreign substance from the image bearer. The abutment part is disposed astride at least one of a first position on the image bearer corresponding to the first boundary, and a second position on the image bearer corresponding to the second boundary.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 22, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsutoshi Kichise, Kenji Nakamura, Takeshi Yamashita, Tamotsu Ikeda, Minoru Toyoda, Yasuhide Matsuno
  • Patent number: 9201394
    Abstract: An image forming apparatus including an intake opening from which an outside air is drawn, a fixing device disposed above the intake opening to heat a recording medium to fix an image onto the recording medium, and a flow path for the air drawn from the intake opening to direct the air onto devices or components provided near the fixing device inside the image forming apparatus by negative pressure generated by an upward current of hot air generated from the fixing device.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 1, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Chikara Hiraoka, Tamotsu Ikeda, Yuusuke Furuichi
  • Publication number: 20150264426
    Abstract: Plural streams are synthesized into one stream, and preferable transmission and reception of the synthesized stream to and from an external device is realized. Transport stream packets of plural transport streams are synthesized to create a synthesized stream, and the created synthesized stream is transmitted to an external device. In this transmission, a count information adding area provided in each of the transport stream packets is brought into a state to which a particular count value is added for each of the transport stream packets of the synthesized stream. This configuration notifies the external device that a function for handling packet order switching based on count information is not provided, and receives from the external device a synthesized stream containing the respective transport stream packets arranged in the same order as the order of the transport stream packets at the time of transmission.
    Type: Application
    Filed: October 8, 2013
    Publication date: September 17, 2015
    Inventors: Yuichi Hirayama, Satoshi Okada, Lachlan Bruce Michael, Tamotsu Ikeda
  • Publication number: 20150248364
    Abstract: Plural streams are synthesized into one stream, and preferable transmission and reception of the synthesized stream to and from an external device is realized. Transport stream packets of plural transport streams are synthesized to create a synthesized stream, and the created synthesized stream is transmitted to an external device. In this transmission, a count information adding area provided in each of the transport stream packets is brought into a state to which a particular count value is added for each of the transport stream packets of the synthesized stream. This configuration notifies the external device that a function for handling packet order switching based on count information is not provided, and receives from the external device a synthesized stream containing the respective transport stream packets arranged in the same order as the order of the transport stream packets at the time of transmission.
    Type: Application
    Filed: October 8, 2013
    Publication date: September 3, 2015
    Inventors: Yuichi Hirayama, Satoshi Okada, Lachlan Bruce Michael, Tamotsu Ikeda