Patents by Inventor Yoshiyuki Araseki

Yoshiyuki Araseki 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: 9827761
    Abstract: A processing target reforming apparatus includes: a conveying unit that conveys a processing target along a conveyance path; a discharge unit including a plurality of discharge electrodes aligned along the conveyance path, a counter electrode with the conveyance path interposed therebetween, and a power source that applies a voltage waveform to the discharge electrodes; and a control unit that controls the discharge unit such that a phase of the voltage waveform applied to a first discharge electrode of the discharge electrodes at a timing when a certain point of the processing target passes between the first discharge electrode and the counter electrode is shifted with respect to a phase of the voltage waveform applied by the power source to a second discharge electrode of the discharge electrodes at a timing when the certain point of the processing target passes between the second discharge electrode and the counter electrode.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: November 28, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kengo Tsubaki, Yoshiyuki Araseki, Akira Saito
  • Publication number: 20150076124
    Abstract: A processing target reforming apparatus includes: a conveying unit that conveys a processing target along a conveyance path; a discharge unit including a plurality of discharge electrodes aligned along the conveyance path, a counter electrode with the conveyance path interposed therebetween, and a power source that applies a voltage waveform to the discharge electrodes; and a control unit that controls the discharge unit such that a phase of the voltage waveform applied to a first discharge electrode of the discharge electrodes at a timing when a certain point of the processing target passes between the first discharge electrode and the counter electrode is shifted with respect to a phase of the voltage waveform applied by the power source to a second discharge electrode of the discharge electrodes at a timing when the certain point of the processing target passes between the second discharge electrode and the counter electrode.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kengo Tsubaki, Yoshiyuki Araseki, Akira Saito
  • Patent number: 7651090
    Abstract: A paper conveyance apparatus includes a stacking portion; a feeding mechanism to extract and feed paper from the stacking portion one sheet at a time; and an intermediate portion for conveying the fed paper to the vicinity of a feeding port or feeding device of a main body of an image forming apparatus. The intermediate portion includes a plurality of conveyance devices and a plurality of paper detecting devices disposed from the upstream side to the downstream side of a conveyance path. The paper conveyance apparatus further includes a control device for reducing the conveyance speed of the plurality of conveyance devices when the leading edge of the paper is detected by a detecting device disposed at least one device further toward the upstream side than a paper detecting device disposed furthest downstream of the plurality of detecting devices.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: January 26, 2010
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Keiichi Satoh, Mituru Takahashi, Yoshiyuki Araseki, Tomotaka Osada
  • Patent number: 7308853
    Abstract: Provided is a bulk paper feeding device with an intermediate conveyor comprising a carrier capable of carrying a large quantity of paper, a paper feeding mechanism for picking up and feeding one sheet at a time of the paper from the carrier, and an intermediate conveyor for transporting a sheet of paper fed from the feeding mechanism to the main paper feeding table of the paper feeder on the body of the image forming device or to the vicinity of a paper feeding port that faces the main paper feeding means of the paper feeder.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: December 18, 2007
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Keiichi Satoh, Mituru Takahashi, Tomotaka Osada, Yoshiyuki Araseki
  • Publication number: 20050184443
    Abstract: A paper conveyance apparatus includes a stacking portion; a feeding mechanism to extract and feed paper from the stacking portion one sheet at a time; and an intermediate portion for conveying the fed paper to the vicinity of a feeding port or feeding device of a main body of an image forming apparatus. The intermediate portion includes a plurality of conveyance devices and a plurality of paper detecting devices disposed from the upstream side to the downstream side of a conveyance path. The paper conveyance apparatus further includes a control device for reducing the conveyance speed of the plurality of conveyance devices when the leading edge of the paper is detected by a detecting device disposed at least one device further toward the upstream side than a paper detecting device disposed furthest downstream of the plurality of detecting devices.
    Type: Application
    Filed: January 27, 2005
    Publication date: August 25, 2005
    Applicant: Tohoku Ricoh Co., Ltd.
    Inventors: Keiichi Satoh, Mituru Takahashi, Yoshiyuki Araseki, Tomotaka Osada
  • Publication number: 20040251589
    Abstract: Provided is a bulk paper feeding device with an intermediate conveyor comprising a carrier capable of carrying a large quantity of paper, a paper feeding mechanism for picking up and feeding one sheet at a time of the paper from the carrier, and an intermediate conveyor for transporting a sheet of paper fed from the feeding mechanism to the main paper feeding table of the paper feeder on the body of the image forming device or to the vicinity of a paper feeding port that faces the main paper feeding means of the paper feeder.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 16, 2004
    Applicant: Tohoku Ricoh Co., Ltd.
    Inventors: Keiichi Satoh, Mituru Takahashi, Takenobu Kamata, Hitoshi Kimura, Masakazu Fujita, Tomotaka Osada, Yoshiyuki Araseki
  • Patent number: 6244594
    Abstract: An apparatus for storing sheets carrying images thereon and sequentially driven out of an image forming apparatus in consecutive bins thereof is disclosed. The apparatus includes a deflector for deflecting a sheet toward the inlet of a preselected bin and a plurality of cylindrical cams cooperating to open and close the inlet of the bin. The deflector and cams are interlocked to each other to operate at a relatively high speed. The apparatus is capable of surely inserting a sheet into the inlet of the bin and highly reliable and durable.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Yoshiyuki Araseki, Masanori Takahashi, Dai Itoh, Tatsuro Watanabe
  • Patent number: 5882005
    Abstract: In an image forming apparatus, a large capacity paper feeder has a single pick-up roller capable of selectively feeding papers from an LCT (Large Capacity Table) or from a cassette removably mounted to the apparatus. The paper feeder, therefore, does not need a bulky paper feed unit for a cassette feed mode. In addition, a space for an LCT feed mode is not necessary above the pick-up roller, so that the height of the apparatus is not increased.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 16, 1999
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Yoshiyuki Araseki, Takenobu Kamada, Hitoshi Kimura
  • Patent number: 5794928
    Abstract: In an image forming apparatus, a large capacity paper feeder has a single pick-up roller capable of selectively feeding papers from an LCT (Large Capacity Table) or from a cassette removably mounted to the apparatus. The paper feeder, therefore, does not need a bulky paper feed unit for a cassette feed mode. In addition, a space for an LCT feed mode is not necessary above the pick-up roller, so that the height of the apparatus is not increased.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: August 18, 1998
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Yoshiyuki Araseki, Takenobu Kamada, Hitoshi Kimura