Patents by Inventor Takuma ARIGA

Takuma ARIGA 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: 9626869
    Abstract: Provided is a drive assisting apparatus which assists follow-up travelling to a forward vehicle including an inter-vehicle information acquisition unit 10 that acquires a distance between a host vehicle and a forward vehicle, a deceleration unit 12 that performs a deceleration control based on the inter-vehicle distance, and a steering information acquisition unit 14 that detects steering by a driver, and the deceleration unit 12 stops the deceleration control, when the steering is detected. Therefore, it is possible to appropriately understand the will of a driver and perform a deceleration control based on the will of the driver.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: April 18, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuma Ariga, Hitoshi Yuasa
  • Patent number: 8925913
    Abstract: A sheet conveying device such as a feed mechanism includes a pick-up roller and a cover member. The pick-up roller feeds, into an apparatus, a sheet such as a document on a placing table such as a document placing table on which the sheet is placed. The cover member such as a pick-up cover covers the pick-up roller. The cover member is supported at both ends thereof on a shaft of the pick-up roller or on shaft bearings that receive the shaft of the pick-up roller.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: January 6, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Hiroshi Kubo, Shinya Kitaoka, Takehisa Shimazu, Takeshi Akai, Takuma Ariga, Fumiyuki Heishi, Michitaka Suzuki, Yoshito Suzuki, Norio Kimura, Hiroaki Utagawa, Kenji Hayasaka, Jun Yamada, Kenichiro Morita, Ikuhisa Okamoto, Satoshi Saito
  • Patent number: 8896891
    Abstract: A document conveying device includes a document table on which a stack of document sheets is placed; a rotating shaft member detachably provided on a main body of the document conveying device; a feeding member configured to contact and feed a topmost sheet of the stack of document sheets, the feeding member being attached to the rotating shaft member via a driving force transmitting member; a separating unit configured to separate the topmost sheet from one or more sheets that are fed together with the topmost sheet, rotating members rotatably attached to the rotating shaft member; a holding member configured to hold the feeding member and the driving force transmitting member; and a rotating member position restricting unit configured to restrict a position of the rotating members other than the holding member to a given predetermined position with reference to a position of the holding member.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Fumiyuki Heishi, Hiroshi Kubo, Takashi Fujii, Shinya Kitaoka, Takeshi Akai, Takehisa Shimazu, Takuma Ariga, Michitaka Suzuki, Yoshito Suzuki, Jun Yamada, Satoshi Saito, Kenichiro Morita, Ikuhisa Okamoto, Kenji Hayasaka, Hiroaki Utagawa
  • Patent number: 8743431
    Abstract: A sheet conveying device includes: a sheet housing unit that houses a sheet; a sheet conveying unit that conveys the sheet; a sheet detection unit that detects presence or absence of the sheet in the sheet housing unit; a sheet nipping unit that nips the sheet housed in the sheet housing unit; and a control unit. The control unit controls the sheet nipping unit to reach a nipping state to nip the sheet in the sheet housing unit upon the sheet detection unit detecting a sheet-present state, executes a power saving mode to stop supplying power to at least a part of the electric mechanisms when no drive command is input for a predetermined time, and controls the sheet nipping unit to cancel the nipping state before execution of the power saving mode.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 3, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Kenji Hayasaka, Hiroshi Kubo, Shinya Kitaoka, Takehisa Shimazu, Takeshi Akai, Takuma Ariga, Fumiyuki Heishi, Yoshito Suzuki, Akihito Kameda, Hiroaki Utagawa, Jun Yamada, Takashi Fujii, Motoya Sano, Satoshi Saito, Ikuhisa Okamoto, Kenichiro Morita
  • Publication number: 20140140744
    Abstract: An automatic document feeder includes a document stack unit; a conveying unit configured to separate a document from the documents stacked on the document stack unit and convey the document to a scanning position through a conveying path; document detecting units configured to detect the document; an upstream document detecting unit configured to detect the document, the upstream document detecting unit being arranged in the conveying path at an uppermost stream in a document conveying direction with respect to the document detecting units; and a determining unit configured to determine a passage of a trailing end of the document at positions of the document detecting units and the upstream document detecting unit and determine a presence of a hole on the document, based on the detection results. A detection range of the upstream document detecting unit is set to be wider than detection ranges of the document detecting units.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: Ricoh Company, Limited
    Inventors: Takeshi AKAI, Takashi FUJII, Satoshi SAITO, Hiroshi KUBO, Ikuhisa OKAMOTO, Shinya KITAOKA, Takehisa SHIMAZU, Kenichiro MORITA, Yoshito SUZUKI, Takuma ARIGA, Jun YAMADA, Kenji HAYASAKA, Akihito KAMEDA, Hiroaki UTAGAWA, Fumiyuki HEISHI
  • Publication number: 20130320611
    Abstract: A sheet conveying device such as a feed mechanism includes a pick-up roller and a cover member. The pick-up roller feeds, into an apparatus, a sheet such as a document on a placing table such as a document placing table on which the sheet is placed. The cover member such as a pick-up cover covers the pick-up roller. The cover member is supported at both ends thereof on a shaft of the pick-up roller or on shaft bearings that receive the shaft of the pick-up roller.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Applicant: RICOH COMPANY, LTD
    Inventors: Hiroshi KUBO, Shinya KITAOKA, Takehisa SHIMAZU, Takeshi AKAI, Takuma ARIGA, Fumiyuki HEISHI, Michitaka SUZUKI, Yoshito SUZUKI, Norio KIMURA, Hiroaki UTAGAWA, Kenji HAYASAKA, Jun YAMADA, Kenichiro MORITA, Ikuhisa OKAMOTO, Satoshi SAITO
  • Publication number: 20130297172
    Abstract: Provided is a drive assisting apparatus which assists follow-up travelling to a forward vehicle including an inter-vehicle information acquisition unit 10 that acquires a distance between a host vehicle and a forward vehicle, a deceleration unit 12 that performs a deceleration control based on the inter-vehicle distance, and a steering information acquisition unit 14 that detects steering by a driver, and the deceleration unit 12 stops the deceleration control, when the steering is detected. Therefore, it is possible to appropriately understand the will of a driver and perform a deceleration control based on the will of the driver.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 7, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuma Ariga, Hitoshi Yuasa
  • Publication number: 20130242359
    Abstract: A document conveying device includes a document table on which a stack of document sheets is placed; a rotating shaft member detachably provided on a main body of the document conveying device; a feeding member configured to contact and feed a topmost sheet of the stack of document sheets, the feeding member being attached to the rotating shaft member via a driving force transmitting member; a separating unit configured to separate the topmost sheet from one or more sheets that are fed together with the topmost sheet, rotating members rotatably attached to the rotating shaft member; a holding member configured to hold the feeding member and the driving force transmitting member; and a rotating member position restricting unit configured to restrict a position of the rotating members other than the holding member to a given predetermined position with reference to a position of the holding member.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 19, 2013
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Fumiyuki HEISHI, Hiroshi KUBO, Takashi FUJII, Shinya KITAOKA, Takeshi AKAI, Takehisa SHIMAZU, Takuma ARIGA, Michitaka SUZUKI, Yoshito SUZUKI, Jun YAMADA, Satoshi SAITO, Kenichiro MORITA, Ikuhisa OKAMOTO, Kenji HAYASAKA, Hiroaki UTAGAWA
  • Publication number: 20130215481
    Abstract: A sheet conveying device includes: a sheet housing unit that houses a sheet; a sheet conveying unit that conveys the sheet; a sheet detection unit that detects presence or absence of the sheet in the sheet housing unit; a sheet nipping unit that nips the sheet housed in the sheet housing unit; and a control unit. The control unit controls the sheet nipping unit to reach a nipping state to nip the sheet in the sheet housing unit upon the sheet detection unit detecting a sheet-present state, executes a power saving mode to stop supplying power to at least a part of the electric mechanisms when no drive command is input for a predetermined time, and controls the sheet nipping unit to cancel the nipping state before execution of the power saving mode.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 22, 2013
    Inventors: Kenji HAYASAKA, Hiroshi KUBO, Shinya KITAOKA, Takehisa SHIMAZU, Takeshi AKAI, Takuma ARIGA, Fumiyuki HEISHI, Yoshito SUZUKI, Akihito KAMEDA, Hiroaki UTAGAWA, Jun YAMADA, Takashi FUJII, Motoya SANO, Satoshi SAITO, Ikuhisa OKAMOTO, Kenichiro MORITA