Patents by Inventor Tatsuya Yamanaka

Tatsuya Yamanaka 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: 9557691
    Abstract: The fixing unit has a housing that has a heating roller and a pressing roller accommodated therein. A temperature detection sensor and a sensor board are provided outside the housing. An image forming apparatus includes a sensor protection tube. The sensor protection tube includes a hollow cylindrical body passing through a side wall portion of the housing. One end of the sensor protection tube abuts a mounting surface of the temperature detection sensor in the sensor board so as to surround a periphery of the temperature detection sensor. The other end of the sensor protection tube is positioned in the housing.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: January 31, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Ryohei Tokunaga, Tatsuya Yamanaka
  • Patent number: 9417577
    Abstract: A fixing device includes a heat source, a heat transfer member, a pressure-contacting member, a housing, and a shutter. The heat transfer member is heated by the heat source. The pressure-contacting member abuts on the heat transfer member. The housing stores the heat transfer member and the pressure-contacting member and is formed with a detection hole for detecting inner property from outside. The fixing device heats recording paper passing through between the heat transfer member and the pressure-contacting member to fix a toner image on the recording paper. The shutter opens and closes the detection hole in accordance with supply of the recording paper to a nip part by the heat transfer member and the pressure-contacting member.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 16, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Publication number: 20160179042
    Abstract: The fixing unit has a housing that has a heating roller and a pressing roller accommodated therein. A temperature detection sensor and a sensor board are provided outside the housing. An image forming apparatus includes a sensor protection tube. The sensor protection tube includes a hollow cylindrical body passing through a side wall portion of the housing. One end of the sensor protection tube abuts a mounting surface of the temperature detection sensor in the sensor board so as to surround a periphery of the temperature detection sensor. The other end of the sensor protection tube is positioned in the housing.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 23, 2016
    Inventors: Ryohei TOKUNAGA, Tatsuya YAMANAKA
  • Publication number: 20160109837
    Abstract: A fixing device includes a heat source, a heat transfer member, a pressure-contacting ember, a housing, and a shutter. The heat transfer member is heated by the heat source. The pressure-contacting member abuts on the heat transfer member. The housing stores the heat transfer member and the pressure-contacting member and is formed with a detection hole for detecting inner property from outside. The fixing device heats recording paper passing through between the heat transfer member and the pressure-contacting member to fix a toner image on the recording paper. The shutter opens and closes the detection hole in accordance with supply of the recording paper to a nip part by the heat transfer member and the pressure-contacting member.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 21, 2016
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Tatsuya YAMANAKA
  • Patent number: 9304442
    Abstract: A developing device includes a case, an agitating member, a moving mechanism and a detecting device. The case contains a developer inside. The agitating member is rotated in the case to agitate the developer while conveying the developer in a rotation axis direction. The moving mechanism reciprocates the agitating member in the rotation axis direction in accordance with the rotation of the agitating member. The detecting device detects a developer amount contained in the case.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 5, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Publication number: 20150344739
    Abstract: A chemical mechanical polishing aqueous dispersion includes colloidal silica (A), an anionic water-soluble polymer (B), and at least one type of an alkanolamine salt (C) selected from the group consisting of an alkyl sulfate and an alkyl ether sulfate, the chemical mechanical polishing aqueous dispersion having a pH of 1 to 4.
    Type: Application
    Filed: December 11, 2013
    Publication date: December 3, 2015
    Applicant: JSR CORPORATION
    Inventors: Yasutaka KAMEI, Yoshitaka MIYAZAKI, Tatsuya YAMANAKA, Tomohisa KONNO
  • Publication number: 20150337245
    Abstract: A cleaning composition includes (A) at least one compound selected from the group consisting of a fatty acid that includes a hydrocarbon group having 8 to 20 carbon atoms, a phosphonic acid that includes a hydrocarbon group having 3 to 20 carbon atoms, a sulfuric acid ester that includes a hydrocarbon group having 3 to 20 carbon atoms, an alkenylsuccinic acid that includes a hydrocarbon group having 3 to 20 carbon atoms, and salts thereof, (B) an organic acid, (C) a water-soluble amine, (D) a water-soluble polymer, and an aqueous medium, the cleaning composition having a pH of 9 or more.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 26, 2015
    Applicant: JSR Corporation
    Inventors: Takahiro HAYAMA, Megumi ARAKAWA, Yuki KUSHIDA, Kiyotaka MITSUMOTO, Yasutaka KAMEI, Masahiro NODA, Tatsuya YAMANAKA
  • Patent number: 9164431
    Abstract: A developing device includes an agitating member agitating and rotating a developer, a developer amount detecting part detecting the developer amount, and a cleaning member being attached to the agitating member to have has an attachment part, a first cleaning part and a second cleaning part and to clean a detecting surface of the developer amount detecting part. The attachment part is formed by an end part of a wire and attached to the agitating member. The first cleaning part is formed by an intermediate part of the wire, and extends from an end part of the attachment part to reach the detecting surface. The second cleaning part is formed by an another end part of the wire, and is constructed by closely winding the wire, protruded to a location in front of the detecting surface and has a greater width than the detecting surface.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 20, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Publication number: 20150198910
    Abstract: A developing device includes a case, an agitating member, a moving mechanism and a detecting device. The case contains a developer inside. The agitating member is rotated in the case to agitate the developer while conveying the developer in a rotation axis direction. The moving mechanism reciprocates the agitating member in the rotation axis direction in accordance with the rotation of the agitating member. The detecting device detects a developer amount contained in the case.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 16, 2015
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Tatsuya YAMANAKA
  • Patent number: 9063459
    Abstract: A toner case includes a main body, a cover, a rotating member, an agitating member, a protrusion arrangement part and a depression arrangement part. The main body has a first wall, a second wall, a third wall, a fourth wall, a bottom board, an opening at an upper side and a toner discharge port discharging a toner stored inside to an outside. The protrusion arrangement part is formed on one of an upper face facing upward formed in the first or second wall and a lower face facing to the upper face formed in the cover. The protrusion arrangement part has a plurality of protrusions arranged in the direction from the third wall to the fourth wall. The depression arrangement part is formed on another of the upper and lower faces. The depression arrangement part has a plurality of depressions, into which the protrusions insert, arranged in the direction.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 23, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Patent number: 9002241
    Abstract: An image forming apparatus includes an attachment member and a toner case. The toner case has a discharge port openable and closable by a shutter mechanism. The shutter mechanism has a first shutter member and a second shutter member. The first shutter member closes the discharge port in a condition in which the toner case is detached from the attachment member, and opens the discharge port in a condition in which the toner case is attached to the attachment member. The second shutter member covers the back side edge portion of the communication port with which the discharge port is communicated in a condition in which the toner case is detached from the attachment member, and exposes the back side edge portion of the communication port in a condition in which the toner case is attached to the attachment member.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 7, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Patent number: 8995883
    Abstract: A developing device includes a developing container, a first agitating/conveying member, a second agitating/conveying member, a developer supply member, a supply port, and a supply section. The developing container is separated into a developer supply passage, a first conveying chamber, and a second conveying chamber, which are arranged substantially parallel to one another. The supply section is disposed between the developer supply passage and the first conveying chamber, and through the supply section, the developer is supplied from the developer supply passage into the first conveying chamber.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 31, 2015
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Koji Kuramashi, Tatsuya Yamanaka, Hirokazu Fujii
  • Patent number: 8919925
    Abstract: An inkjet image forming apparatus includes an ink container and a container installed part. The ink container is configured to store an ink. To the container installed part, the ink container is attached/detached along an installing direction. The ink container includes a container case and a shutter. The container case has a lower face to which a supplying port discharging the ink is located. The shutter is located to leave a space from the supplying port and switchable between a closing state covering a bottom of the supplying port and an opening state exposing the supplying port.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 30, 2014
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masanobu Maeshima, Tatsuya Yamanaka
  • Patent number: 8897678
    Abstract: A toner replenishing device includes a toner conveying portion, a conveying member, a toner loosening member and a swinging member. The toner conveying portion has a vertical conveying portion for vertically conveying toner, and a horizontal conveying portion for horizontally conveying the toner. The conveying member is disposed in the horizontal conveying portion, and has a shaft member and a projecting portion formed around the shaft member. The toner loosening member is disposed in the vertical conveying portion to be swingable up and down. The swinging member is contactable with the conveying member and the toner loosening member. The swinging member swings up and down by a change in a contact portion with respect to the conveying member between the shaft member and the projecting portion, as the conveying member rotates. The toner loosening member swings up and down as the swinging member swings.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: November 25, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Publication number: 20140314450
    Abstract: A developing device includes a developing container, a first agitating/conveying member, a second agitating/conveying member, a developer supply member, a supply port, and a supply section. The developing container is separated into a developer supply passage, a first conveying chamber, and a second conveying chamber, which are arranged substantially parallel to one another. The supply section is disposed between the developer supply passage and the first conveying chamber, and through the supply section, the developer is supplied from the developer supply passage into the first conveying chamber.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 23, 2014
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Koji KURAMASHI, Tatsuya YAMANAKA, Hirokazu FUJII
  • Publication number: 20140205304
    Abstract: A developing device includes an agitating member agitating and rotating a developer, a developer amount detecting part detecting the developer amount, and a cleaning member being attached to the agitating member to have has an attachment part, a first cleaning part and a second cleaning part and to clean a detecting surface of the developer amount detecting part. The attachment part is formed by an end part of a wire and attached to the agitating member. The first cleaning part is formed by an intermediate part of the wire, and extends from an end part of the attachment part to reach the detecting surface. The second cleaning part is formed by an another end part of the wire, and is constructed by closely winding the wire, protruded to a location in front of the detecting surface and has a greater width than the detecting surface.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 24, 2014
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Tatsuya YAMANAKA
  • Patent number: 8787795
    Abstract: What is provided is an image formation apparatus including: an image formation part provided inside a main body so that the image formation part may be attached to the main body and detached from the main body; a plurality of opening-closing parts which may be opened and closed to attach the image formation part to the main body or detach the image formation part from the main body; and a plurality of locking parts latching each of the plurality of opening-closing parts to the main body, wherein when one of the plurality of locking parts undergoes a releasing operation, an other one of the plurality of locking parts also undergoes a releasing operation.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: July 22, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Hirokazu Fujii, Daijiro Ueno, Hiroki Takahashi, Tatsuya Yamanaka
  • Publication number: 20140140737
    Abstract: An image forming apparatus includes an attachment member and a toner case. The toner case has a discharge port openable and closable by a shutter mechanism. The shutter mechanism has a first shutter member and a second shutter member. The first shutter member closes the discharge port in a condition in which the toner case is detached from the attachment member, and opens the discharge port in a condition in which the toner case is attached to the attachment member. The second shutter member covers the back side edge portion of the communication port with which the discharge port is communicated in a condition in which the toner case is detached from the attachment member, and exposes the back side edge portion of the communication port in a condition in which the toner case is attached to the attachment member.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 22, 2014
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Tatsuya YAMANAKA
  • Patent number: D720396
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: December 30, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Masaru Torimoto, Tatsuya Yamanaka
  • Patent number: D722337
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 10, 2015
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Masaru Torimoto, Tatsuya Yamanaka