Patents by Inventor Takuji Kawaguchi

Takuji Kawaguchi 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: 11452170
    Abstract: A communication system includes a terminal apparatus, and an information processing apparatus. The terminal apparatus includes first circuitry to perform a direct connection with the information processing apparatus wirelessly, transmit an information processing request, requesting processing of information, to the information processing apparatus, and transmit a disconnection request of the direct connection to the information processing apparatus after transmitting the information processing request to the information processing apparatus. The information processing apparatus includes second circuitry to perform the direct connection with the first circuitry of the terminal apparatus wirelessly, process the information processing request received from the terminal apparatus, and disconnect the direct connection of the information processing apparatus and the terminal apparatus in response to receiving the disconnection request.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: September 20, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takuji Kawaguchi
  • Publication number: 20200221535
    Abstract: A communication system includes a terminal apparatus, and an information processing apparatus. The terminal apparatus includes first circuitry to perform a direct connection with the information processing apparatus wirelessly, transmit an information processing request, requesting processing of information, to the information processing apparatus, and transmit a disconnection request of the direct connection to the information processing apparatus after transmitting the information processing request to the information processing apparatus. The information processing apparatus includes second circuitry to perform the direct connection with the first circuitry of the terminal apparatus wirelessly, process the information processing request received from the terminal apparatus, and disconnect the direct connection of the information processing apparatus and the terminal apparatus in response to receiving the disconnection request.
    Type: Application
    Filed: March 17, 2020
    Publication date: July 9, 2020
    Inventor: Takuji KAWAGUCHI
  • Patent number: 10674561
    Abstract: A communication system includes a terminal apparatus, and an information processing apparatus. The terminal apparatus includes first circuitry to perform a direct connection with the information processing apparatus wirelessly, transmit an information processing request, requesting processing of information, to the information processing apparatus, and transmit a disconnection request of the direct connection to the information processing apparatus after transmitting the information processing request to the information processing apparatus. The information processing apparatus includes second circuitry to perform the direct connection with the first circuitry of the terminal apparatus wirelessly, process the information processing request received from the terminal apparatus, and disconnect the direct connection of the information processing apparatus and the terminal apparatus in response to receiving the disconnection request.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: June 2, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Takuji Kawaguchi
  • Publication number: 20180074812
    Abstract: An information terminal transfers information for updating an electronic device to the electronic device. The terminal includes a downloader, a memory, and an update assistance unit. The downloader downloads the information via a network. The memory stores the information downloaded by the downloader. The update assistance unit starts with download of the information and transfers to the electronic device the information stored in the memory by the download.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Inventors: Takuji KAWAGUCHI, Tomoe Kitaguchi
  • Publication number: 20170339735
    Abstract: A communication system includes a terminal apparatus, and an information processing apparatus. The terminal apparatus includes first circuitry to perform a direct connection with the information processing apparatus wirelessly, transmit an information processing request, requesting processing of information, to the information processing apparatus, and transmit a disconnection request of the direct connection to the information processing apparatus after transmitting the information processing request to the information processing apparatus. The information processing apparatus includes second circuitry to perform the direct connection with the first circuitry of the terminal apparatus wirelessly, process the information processing request received from the terminal apparatus, and disconnect the direct connection of the information processing apparatus and the terminal apparatus in response to receiving the disconnection request.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 23, 2017
    Inventor: Takuji KAWAGUCHI
  • Patent number: 9308754
    Abstract: An image forming apparatus includes a conveyance unit configured to convey a recording medium; a reversing unit configured to reverse front and back sides of the recording medium; a recording head configured to reciprocatingly scan to form a first image on a first side of the recording medium, which is reciprocatingly conveyed by the conveyance unit at a first conveyance speed V1, and a second image on a second side of the recording medium, which is conveyed at a second conveyance speed V2 and ejected, in a case of performing a double-sided printing; and a control unit configured to control the first conveyance speed V1 and the second conveyance speed V2 to satisfy a relation V2?W/t<V1?(W/t)×2, where t is a scanning time required for one reciprocation of the recording head, and W is an image formation width of the recording head.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 12, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Hitoshi Sasaki, Yuuichiroh Tsujiguchi, Takuji Kawaguchi, Shigeru Yoshigai, Keizoh Shigaki
  • Publication number: 20160082753
    Abstract: An image forming apparatus includes a conveyance unit configured to convey a recording medium; a reversing unit configured to reverse front and back sides of the recording medium; a recording head configured to reciprocatingly scan to form a first image on a first side of the recording medium, which is reciprocatingly conveyed by the conveyance unit at a first conveyance speed V1, and a second image on a second side of the recording medium, which is conveyed at a second conveyance speed V2 and ejected, in a case of performing a double-sided printing; and a control unit configured to control the first conveyance speed V1 and the second conveyance speed V2 to satisfy a relation V2?W/t<V1?(W/t)×2, where t is a scanning time required for one reciprocation of the recording head, and W is an image formation width of the recording head.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 24, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Hitoshi Sasaki, Yuuichiroh Tsujiguchi, Takuji Kawaguchi, Shigeru Yoshigai, Keizoh Shigaki
  • Publication number: 20160067989
    Abstract: An image formation apparatus includes a conveying unit that conveys a recording medium; a recording head that reciprocates in a direction orthogonal to a conveying direction of the recording medium while the recording medium is being conveyed by the conveying unit, the recording head forming an image on the recording medium; a reception unit that receives scan image data, the scan image data being used to form the image, while the recording head waits in a non-printing region of the recording medium; and a control unit that controls a conveyance distance of the recording medium conveyed by the conveying unit while the recording head waits in the non-printing region. The control of the conveyance distance of the recording medium is determined based on a scan image data reception period of the scan image data, the scan image data reception period being obtained from a communication speed of the reception unit.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 10, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Shigeru Yoshigai, Yuuichiroh Tsujiguchi, Hitoshi Sasaki, Takuji Kawaguchi, Keizoh Shigaki
  • Patent number: 7921421
    Abstract: A method of managing program versions by acquiring information about a program supplied via a network, comparing the program of a latest version with the program of a currently used version, and deciding whether or not to perform or prompt an update of the program includes determining whether or not to perform or prompt the update of the program in response to importance of modifications to be made from the program of the currently used version to the program of the latest version.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: April 5, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Takuji Kawaguchi
  • Publication number: 20080288935
    Abstract: A method of managing program versions by acquiring information about a program supplied via a network, comparing the program of a latest version with the program of a currently used version, and deciding whether or not to perform or prompt an update of the program includes determining whether or not to perform or prompt the update of the program in response to importance of modifications to be made from the program of the currently used version to the program of the latest version.
    Type: Application
    Filed: April 21, 2006
    Publication date: November 20, 2008
    Inventor: Takuji Kawaguchi