Patents by Inventor Takeru Kinoshita

Takeru Kinoshita 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: 20210063915
    Abstract: A developing roller includes: a magnet roller including a roll part with a magnetic pole; a cylindrical sleeve that houses the magnet roller; a first flange connected to one end of the sleeve; a second flange connected to another end of the sleeve; a conductive shaft connected to a side of the second flange of the magnet roller; a first bearing that supports the first flange so that the first flange rotates relative to the magnet roller; and second bearings that support the second flange so that the second flange rotates relative to the conductive shaft. The second bearings are conductive, and are disposed at different positions along an axial direction of the conductive shaft.
    Type: Application
    Filed: August 7, 2020
    Publication date: March 4, 2021
    Applicant: Konica Minolta, Inc.
    Inventors: Junji Murakawa, Takeru Kinoshita, Hideaki Ikeda
  • Publication number: 20210003938
    Abstract: A developing device, includes: a developing sleeve supported rotatably, the developing sleeve having a hollow, substantially cylindrical shape; a magnet part having a substantially columnar shape, the magnet part having magnetic poles disposed side by side around an axis, the magnet part being disposed substantially coaxially with the developing sleeve inside the developing sleeve; a rod fastened to the magnet part, the rod extending from one end in an extending direction of the axis of the magnet part, the rod being pulled out from one axial end of the developing sleeve; and a holder attached to a portion of the rod pulled out from the developing sleeve, the holder being fastened to a fastening target, the holder maintaining the rod, the holder regulating rotation of the magnet part, wherein adjustment of the holder in fastening position enables disposition and holding of the rod at an optional position.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 7, 2021
    Inventors: Futoshi OKAZAKI, Yasuyuki INADA, Noriyuki KINPARA, Hideaki IKEDA, Takeru KINOSHITA, Junji MURAKAWA
  • Publication number: 20200371461
    Abstract: A fusing device includes: a pressure member that forms a paper contact part between the pressure member and a heating member; and a guide member disposed in the vicinity of the pressure member on the other side of which the paper contact part is formed. The guide member has a first guide wall and an outlet. The first guide wall is disposed in the close proximity of the peripheral surface of the pressure member on the other side of which the paper contact part is formed. The outlet allows cooling air to go away from the pressure roller. The cooling air is supplied from a fan then comes downstream through a passage formed by the first guide wall. The guide member is configured such that a distance between the first guide wall and the pressure member is the shortest at a most downstream part of the passage.
    Type: Application
    Filed: May 4, 2020
    Publication date: November 26, 2020
    Inventors: Masashi NAKABO, Takeru KINOSHITA
  • Patent number: 10698343
    Abstract: A developer replenishment container attachable to and detachable from a container receiver of a developer supply device is provided. The developer replenishment container includes a containing cover portion, a containing portion, and a discharge mechanism configured to deliver a developer to a discharge port while loosening the developer. The containing portion has a circumferential wall and a rotational force input portion. The circumferential wall is provided with a spiral protrusion. The discharge mechanism has a cam member and a biasing member including a bellows portion. A discharge channel is formed between the cam member and the bellows portion. The bellows portion extends and contracts in accordance with reciprocating movement of the cam member along an axial direction of the circumferential wall.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 30, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takeru Kinoshita
  • Publication number: 20200081372
    Abstract: A developer replenishment container attachable to and detachable from a container receiver of a developer supply device is provided. The developer replenishment container includes a containing cover portion, a containing portion, and a discharge mechanism configured to deliver a developer to a discharge port while loosening the developer. The containing portion has a circumferential wall and a rotational force input portion. The circumferential wall is provided with a spiral protrusion. The discharge mechanism has a cam member and a biasing member including a bellows portion. A discharge channel is formed between the cam member and the bellows portion. The bellows portion extends and contracts in accordance with reciprocating movement of the cam member along an axial direction of the circumferential wall.
    Type: Application
    Filed: August 20, 2019
    Publication date: March 12, 2020
    Applicant: KONICA MINOLTA, INC.
    Inventor: Takeru KINOSHITA
  • Patent number: 10571827
    Abstract: A device that replenishes developer to a developer unit and includes a storage for storing developer, an agitation member, and a vibration plate. The agitation member has a blade shape and is rotationally driven to agitate the developer in the storage. The vibration plate extends from a top portion towards a bottom portion of the storage along a rotation direction of the agitation member, and includes a vibration portion that vibrates due to contact with the agitation member undergoing rotation. A top end of the vibration plate is fixed and a bottom end of the vibration plate is a free end, and there is a gap between the vibration portion and an inner wall of the storage. The vibration plate is provided with an engagement protrusion towards the free end that engages with the agitation member and causes the agitation member undergoing rotation to deform then spring back.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: February 25, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tetsuya Sakai, Syuichi Katogi, Takeru Kinoshita
  • Patent number: 10527976
    Abstract: A toner supply device includes a pressing portion that presses a toner cartridge such that the toner cartridge is detached from a device body. The toner cartridge has an engaging portion. The device body has a guiding portion. The guiding portion has an upper guide groove that guides the engaging portion in an attachment operation of attaching the toner cartridge to the device body, and a lock portion provided at a position deviated from the upper guide groove in an innermost portion of the guiding portion. When the engaging portion moving in the upper guide groove along with the attachment operation reaches the innermost portion, the engaging portion is engaged with the lock portion by the pressing portion pressing back the toner cartridge, allowing the toner cartridge to be attached to the device body so as not to be detached therefrom.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 7, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takeru Kinoshita
  • Publication number: 20190163096
    Abstract: A toner supply device includes a pressing portion that presses a toner cartridge such that the toner cartridge is detached from a device body. The toner cartridge has an engaging portion. The device body has a guiding portion. The guiding portion has an upper guide groove that guides the engaging portion in an attachment operation of attaching the toner cartridge to the device body, and a lock portion provided at a position deviated from the upper guide groove in an innermost portion of the guiding portion. When the engaging portion moving in the upper guide groove along with the attachment operation reaches the innermost portion, the engaging portion is engaged with the lock portion by the pressing portion pressing back the toner cartridge, allowing the toner cartridge to be attached to the device body so as not to be detached therefrom.
    Type: Application
    Filed: October 15, 2018
    Publication date: May 30, 2019
    Inventor: Takeru KINOSHITA
  • Publication number: 20190056681
    Abstract: A device that replenishes developer to a developer unit and includes a storage for storing developer, an agitation member, and a vibration plate. The agitation member has a blade shape and is rotationally driven to agitate the developer in the storage. The vibration plate extends from a top portion towards a bottom portion of the storage along a rotation direction of the agitation member, and includes a vibration portion that vibrates due to contact with the agitation member undergoing rotation. A top end of the vibration plate is fixed and a bottom end of the vibration plate is a free end, and there is a gap between the vibration portion and an inner wall of the storage. The vibration plate is provided with an engagement protrusion towards the free end that engages with the agitation member and causes the agitation member undergoing rotation to deform then spring back.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 21, 2019
    Inventors: Tetsuya SAKAI, Syuichi KATOGI, Takeru KINOSHITA
  • Patent number: 9753419
    Abstract: A fixing device and an image forming apparatus to pass a paper through a nip portion between a fixing roller and a pressure roller and fix a toner image on the paper. The image forming apparatus includes a first spring and a second spring to press the pressure roller against the fixing roller and an operation lever to change a pressing state of the springs. The operation lever has two positions of: a first position in which pressing of the pressure roller by the first spring is made active and pressing by the second spring is made inactive; and a second position in which the pressing by the second spring is made active and the pressing by the first spring is made inactive. A contact pressure of the pressure roller against the fixing roller is differentiated in the first position and in the second position.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 5, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Naoki Kataoka, Takeru Kinoshita
  • Patent number: 9709941
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a door, an elastic member to generate a pressing force of a nip portion of the fixing unit, and a switching member to change a pressing state of the elastic member. The switching member is placed in any one of first, second, and third positions. In the first position, the pressing force is defined as a first level. The second position has a second level different from the first level. The pressing force of the third position is equal to or lower than the smaller one of the first and second levels. While the door is closed from open state, an interference member of the door does not interfere with the switching member in the first or second position but interferes with the switching member in the third position to move the switching member to the first position.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 18, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeru Kinoshita, Naoki Kataoka
  • Publication number: 20170010574
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a door, an elastic member to generate a pressing force of a nip portion of the fixing unit, and a switching member to change a pressing state of the elastic member. The switching member is placed in any one of first, second, and third positions. In the first position, the pressing force is defined as a first level. The second position has a second level different from the first level. The pressing force of the third position is equal to or lower than the smaller one of the first and second levels. While the door is closed from open state, an interference member of the door does not interfere with the switching member in the first or second position but interferes with the switching member in the third position to move the switching member to the first position.
    Type: Application
    Filed: June 2, 2016
    Publication date: January 12, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Takeru KINOSHITA, Naoki KATAOKA
  • Patent number: 9529301
    Abstract: An image forming apparatus comprises image forming sections for each color, each including a pressure receiving parts pair in a first outer region of a first rotary body and a second rotary body as an image carrier and a developing roller. A first image forming section includes a first pressure receiving part of the first rotary body and a second pressure receiving part of the second rotary body as the pressure receiving parts pair. A second image forming section includes a third pressure receiving part of the first rotary body and a fourth pressure receiving part of the second rotary body as the pressure receiving parts pair. A protruding distance of the first pressure receiving part is smaller than a protruding distance of the third pressure receiving part. A protruding distance of the second pressure receiving part is larger than a protruding distance of the fourth pressure receiving part.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: December 27, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Junji Murakawa, Takeru Kinoshita, Hideji Hayashi
  • Publication number: 20160370744
    Abstract: A fixing device and an image forming apparatus to pass a paper through a nip portion between a fixing roller and a pressure roller and fix a toner image on the paper. The image forming apparatus includes a first spring and a second spring to press the pressure roller against the fixing roller and an operation lever to change a pressing state of the springs. The operation lever has two positions of: a first position in which pressing of the pressure roller by the first spring is made active and pressing by the second spring is made inactive; and a second position in which the pressing by the second spring is made active and the pressing by the first spring is made inactive. A contact pressure of the pressure roller against the fixing roller is differentiated in the first position and in the second position.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 22, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventors: NAOKI KATAOKA, TAKERU KINOSHITA
  • Publication number: 20160246214
    Abstract: An image forming apparatus comprises image forming sections for each color, each including a pressure receiving parts pair in a first outer region of a first rotary body and a second rotary body as an image carrier and a developing roller. A first image forming section includes a first pressure receiving part of the first rotary body and a second pressure receiving part of the second rotary body as the pressure receiving parts pair. A second image forming section includes a third pressure receiving part of the first rotary body and a fourth pressure receiving part of the second rotary body as the pressure receiving parts pair. A protruding distance of the first pressure receiving part is smaller than a protruding distance of the third pressure receiving part. A protruding distance of the second pressure receiving part is larger than a protruding distance of the fourth pressure receiving part.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 25, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventors: Junji MURAKAWA, Takeru KINOSHITA, Hideji HAYASHI
  • Patent number: 9261773
    Abstract: To provide a mask blank for EUVL wherein the incident angle dependence of EUV reflectivity and the film stress in a Mo/Si multilayer reflective film are improved, and a reflective layer-equipped substrate for such a mask blank. The reflective layer-equipped substrate for EUV lithography (EUVL), comprises a substrate, and a reflective layer for reflecting EUV light, formed on the substrate, wherein the reflective layer comprises a second multilayer reflective film having a Mo layer and a Si layer alternately stacked plural times on the substrate, an adjustment layer stacked on the second multilayer reflective film, and a first multilayer reflective film having a Mo layer and a Si layer alternately stacked plural times on the adjustment layer.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 16, 2016
    Assignee: Asahi Glass Company, Limited
    Inventor: Takeru Kinoshita
  • Patent number: 9207529
    Abstract: A process for producing a reflective mask blank for EUV lithography (EUVL), which comprises forming a multilayer reflective film for reflecting EUV light on a film-forming surface of a substrate, then forming a protective layer for protecting the multilayer reflective film, on the multilayer reflective film, and forming an absorber layer for absorbing EUV light, on the protective layer, to produce a reflective mask blank for EUVL, wherein the multilayer reflective film is a Mo/Si multilayer reflective film, the protective layer is a Ru layer or a Ru compound layer, the absorber layer is a layer containing at least Ta and N, and after forming the Mo/Si multilayer reflective film, the protective layer is formed, and after forming a Si thin film or Si oxide thin film having a thickness of at most 2 nm on the protective layer, the absorber layer is formed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 8, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Takeru Kinoshita, Masaki Mikami, Kazuyuki Hayashi
  • Patent number: 9020375
    Abstract: A toner resupply device includes a detector plate for detecting a surface of toner stored in a hopper; a douser that moves together with the detector plate; a fixing plate for fixing the detector plate and the douser integrally; and a toner sensor for detecting a phase of the douser. The douser has a light-blocking surface that blocks light to be detected by the toner sensor, and a shaft extending in an axial direction crossing the light-blocking surface, the shaft being inserted in a hole made in the detector plate. The shaft has a groove in which the fixing plate is locked, the groove extending in a direction crossing the axial direction. The fixing plate in a state of being locked in the groove pushes the shaft in the axial direction, thereby fixing the detector plate and the douser to each other.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: April 28, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takeru Kinoshita, Kengo Asai
  • Patent number: D894267
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 25, 2020
    Assignee: KONICA MINOLTA, INC
    Inventors: Hideaki Ikeda, Hideji Higashimura, Takeru Kinoshita
  • Patent number: D908169
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 19, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hideaki Ikeda, Hideji Higashimura, Takeru Kinoshita