Patents by Inventor Hiroki ISHIKURA

Hiroki ISHIKURA 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).

  • Publication number: 20220299913
    Abstract: An image formation apparatus according to one or more embodiments may include: an apparatus main body that includes an image formation section configured to form an image on a medium; a fixation device that includes a fixation member configured to heat the medium and is attachable to the apparatus main body in a first direction; and a temperature detector including a lens, provided in the apparatus main body, and configured to detect a temperature of the fixation member through the lens. An optical axis of the lens is inclined with respect to the first direction.
    Type: Application
    Filed: December 9, 2021
    Publication date: September 22, 2022
    Applicant: Oki Electric Industry Co., Ltd.
    Inventor: Hiroki ISHIKURA
  • Patent number: 10705469
    Abstract: A medium cutting device cutting a continuous medium carried along a carrying path in a carrying direction includes a sandwiching part that is provided capable of sandwiching a medium; and a cutting blade that includes an edge extending in a width direction (X) of the medium, which is perpendicular to the carrying direction, wherein the medium is cut by the edge while the medium is sandwiched and held by the sandwiching part. Wherein the edge is in a shape depicting an involute curve in which path lengths (PL) of the medium, which are determined from the sandwiching part to the edge in the carrying direction, are substantially constant over the edge in the width direction.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: July 7, 2020
    Assignee: Oki Data Corporation
    Inventor: Hiroki Ishikura
  • Patent number: 10638007
    Abstract: A sheet medium conveying device conveys a sheet medium in which position detection marks are provided at regular intervals in a medium conveying direction in which the sheet medium is conveyed. The sheet medium conveying device includes a controller that controls conveyance of the sheet medium. The controller selects one of a first standby position and a second standby position located downstream of the first standby position in the medium conveying direction, and conveys the sheet medium to the selected standby position and puts the sheet medium on standby.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: April 28, 2020
    Assignee: Oki Data Corporation
    Inventor: Hiroki Ishikura
  • Publication number: 20190306353
    Abstract: A sheet medium conveying device conveys a sheet medium in which position detection marks are provided at regular intervals in a medium conveying direction in which the sheet medium is conveyed. The sheet medium conveying device includes a controller that controls conveyance of the sheet medium. The controller selects one of a first standby position and a second standby position located downstream of the first standby position in the medium conveying direction, and conveys the sheet medium to the selected standby position and puts the sheet medium on standby.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Applicant: Oki Data Corporation
    Inventor: Hiroki ISHIKURA
  • Publication number: 20190064724
    Abstract: A medium cutting device cutting a continuous medium carried along a carrying path in a carrying direction includes a sandwiching part that is provided capable of sandwiching a medium; and a cutting blade that includes an edge extending in a width direction (X) of the medium, which is perpendicular to the carrying direction, wherein the medium is cut by the edge while the medium is sandwiched and held by the sandwiching part. Wherein the edge is in a shape depicting an involute curve in which path lengths (PL) of the medium, which are determined from the sandwiching part to the edge in the carrying direction, are substantially constant over the edge in the width direction.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 28, 2019
    Inventor: Hiroki ISHIKURA
  • Publication number: 20190033768
    Abstract: A medium cutting device for cutting a continuous medium includes a sandwiching part to sandwich the medium wherein the medium is sandwiched at a sandwiching spot, a cutting blade provided with an edge at its tip for cutting the medium, and a contact part including a convex contact surface that is positioned on an opposite side from the sandwiching part with respect to the edge such that the contact surface is configured to contact the medium when the medium is pulled toward the contact part wherein a spot on the contact surface of which a tangent line passes through the sandwiching spot is defined as a first contact spot (X1). Wherein when an imaginary straight line that connects the sandwiching spot and the first contact spot is defined as a first tangent line (TL1), at least a portion of the edge is positioned on a side at which the contact part is present with respect to the first tangent line.
    Type: Application
    Filed: July 12, 2018
    Publication date: January 31, 2019
    Inventor: Hiroki ISHIKURA
  • Patent number: 9541880
    Abstract: A medium carrying device that carries a medium includes a first roller, a second roller, a rotation transmitting part that drives its rotation by a driving force transmitted from a driving force source, and moves between at a transmitting position and at a releasing position, at the transmitting position, the rotation transmitting part transmits the driving force to the first roller, at the releasing position, the rotation transmitting part does not transmit the driving force, a transmission releasing part that is connected to the rotation transmitting part. When the medium is bowed between the first and second rollers, the transmission releasing part moves the rotation transmitting part from the transmitting position to the releasing position according to the bowing of the medium.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: January 10, 2017
    Assignee: Oki Data Corporation
    Inventor: Hiroki Ishikura
  • Patent number: 9327924
    Abstract: A sheet containing device of the invention includes a sheet containing unit for containing a sheet, a regulation member arranged movably in a prescribed moving direction for regulating a position of the sheet contained in the sheet containing unit, a first engaging portion provided at the regulation member, and a first engaged portion provided at the sheet containing unit for holding the regulation member at plural holding positions by engaging the first engaging portion. One of the first engaging and engaged portions has plural engagement grooves arranged with first intervals, and the other of the first engaging and engaged portions has plural engagement projections arranged with second intervals engageable with the plural engagement grooves. An interval of the plural holding positions is equal to the first interval whereas the second interval is an integral multiplication equal to or greater than two of the first interval.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 3, 2016
    Assignee: Oki Data Corporation
    Inventor: Hiroki Ishikura
  • Publication number: 20160091853
    Abstract: A medium carrying device that carries a medium includes a first roller, a second roller, a rotation transmitting part that drives its rotation by a driving force transmitted from a driving force source, and moves between at a transmitting position and at a releasing position, at the transmitting position, the rotation transmitting part transmits the driving force to the first roller, at the releasing position, the rotation transmitting part does not transmit the driving force, a transmission releasing part that is connected to the rotation transmitting part. When the medium is bowed between the first and second rollers, the transmission releasing part moves the rotation transmitting part from the transmitting position to the releasing position according to the bowing of the medium.
    Type: Application
    Filed: July 27, 2015
    Publication date: March 31, 2016
    Inventor: Hiroki ISHIKURA
  • Publication number: 20150298921
    Abstract: A sheet containing device of the invention includes a sheet containing unit for containing a sheet, a regulation member arranged movably in a prescribed moving direction for regulating a position of the sheet contained in the sheet containing unit, a first engaging portion provided at the regulation member, and a first engaged portion provided at the sheet containing unit for holding the regulation member at plural holding positions by engaging the first engaging portion. One of the first engaging and engaged portions has plural engagement grooves arranged with first intervals, and the other of the first engaging and engaged portions has plural engagement projections arranged with second intervals engageable with the plural engagement grooves. An interval of the plural holding positions is equal to the first interval whereas the second interval is an integral multiplication equal to or greater than two of the first interval.
    Type: Application
    Filed: January 29, 2015
    Publication date: October 22, 2015
    Inventor: Hiroki ISHIKURA
  • Patent number: 9126788
    Abstract: An image forming apparatus includes an engagement member provided on a sheet supply cassette, a biasing member with a first part, a second part and an elastic part formed of elastic material. The first and second parts are linked with the elastic part. The second part is supported to a apparatus main body with a swing shaft. The first part engaging with the engagement member so that the biasing member maintains a compressed state by the engagement member, and a guide restriction member provided on the apparatus main body restrict a movement of the first part.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: September 8, 2015
    Assignee: Oki Data Corporation
    Inventor: Hiroki Ishikura
  • Publication number: 20130285317
    Abstract: An image forming apparatus includes an engagement member provided on a sheet supply cassette, a biasing member with a first part, a second part and an elastic part formed of elastic material. The first and second parts are linked with the elastic part. The second part is supported to a apparatus main body with a swing shaft. The first part engaging with the engagement member so that the biasing member maintains a compressed state by the engagement member, and a guide restriction member provided on the apparatus main body restrict a movement of the first part.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Applicant: Oki Data Corporation
    Inventor: Hiroki ISHIKURA