Patents by Inventor Yukio Hosoya

Yukio Hosoya 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: 11188020
    Abstract: There is provided a method of producing a blade for cleaning a toner image retainer, the method including: binding an abutting layer that abuts against the toner image retainer and a supporting layer that supports the abutting layer, wherein the maximum value D of a difference between a first loss tangent at 1 Hz and a second loss tangent at 100 Hz of the blade that includes the abutting layer and the supporting layer satisfies the formula: 0.2?D?0.7, wherein the maximum value D is a maximum value of a difference between the first loss tangent and the second loss tangent at temperatures within a range of 0° C. to 50° C.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: November 30, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kunihiro Ogura, Yukio Hosoya, Taiki Amemiya, Teruo Sasaki
  • Publication number: 20210325816
    Abstract: There is provided a method of producing a blade for cleaning a toner image retainer, the method including: binding an abutting layer that abuts against the toner image retainer and a supporting layer that supports the abutting layer, wherein the maximum value D of a difference between a first loss tangent (Tan ?) at 1 Hz and a second loss tangent at 100 Hz of the blade that includes the abutting layer and the supporting layer satisfies formula (1): [Mathematical Formula 1] 0.2?D?0.7??(1) wherein the maximum value D is a maximum value of a difference between the first loss tangent and the second loss tangent at temperatures within a range of 0° C. to 50° C.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 21, 2021
    Inventors: Kunihiro OGURA, Yukio HOSOYA, Taiki AMEMIYA, Teruo SASAKI
  • Patent number: 11078350
    Abstract: Provided is a cleaning member including a urethane rubber, wherein the urethane rubber has a cyclic structure portion in which a fluorine atom is directly bonded to the cyclic structure portion.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 3, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Taiki Amemiya, Yukio Hosoya, Kunihiro Ogura
  • Publication number: 20200079937
    Abstract: Provided is a cleaning member including a urethane rubber, wherein the urethane rubber has a cyclic structure portion in which a fluorine atom is directly bonded to the cyclic structure portion.
    Type: Application
    Filed: July 22, 2019
    Publication date: March 12, 2020
    Inventors: Taiki AMEMIYA, Yukio HOSOYA, Kunihiro OGURA
  • Patent number: 10466642
    Abstract: The present invention relates to a solid lubricant to be coated on an image bearing member included in an electrophotographic image forming apparatus. The solid lubricant contains a resin particle and metal soap. The resin particle includes a particle body containing an amorphous resin as a principal component, and a fluorine atom supported on a surface of the particle body. The resin particle is a particle having a volume average particle size of 70 nm or more. The solid lubricant can sufficiently increase a cleaning effect in the image forming apparatus.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 5, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Taiki Amemiya, Yukio Hosoya, Kunihiro Ogura
  • Publication number: 20190163115
    Abstract: The present invention relates to a solid lubricant to be coated on an image bearing member included in an electrophotographic image forming apparatus. The solid lubricant contains a resin particle and metal soap. The resin particle includes a particle body containing an amorphous resin as a principal component, and a fluorine atom supported on a surface of the particle body. The resin particle is a particle having a volume average particle size of 70 nm or more. The solid lubricant can sufficiently increase a cleaning effect in the image forming apparatus.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 30, 2019
    Inventors: Taiki AMEMIYA, Yukio Hosoya, Kunihiro Ogura
  • Patent number: 10216125
    Abstract: A solid lubricant to be applied onto an image carrier of an image forming apparatus of an electrophotographic system, includes a metal soap and resin particles, and the resin particles have a particle main body constituted by a rigid resin other than fluorine-based resins, and fluorine atoms carried on the surface of the particle main body.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: February 26, 2019
    Assignee: Konica Minolta, Inc.
    Inventors: Kunihiro Ogura, Yukio Hosoya, Taiki Amemiya
  • Publication number: 20180217539
    Abstract: A solid lubricant to be applied onto an image carrier of an image forming apparatus of an electrophotographic system, includes a metal soap and resin particles, and the resin particles have a particle main body constituted by a rigid resin other than fluorine-based resins, and fluorine atoms carried on the surface of the particle main body.
    Type: Application
    Filed: January 25, 2018
    Publication date: August 2, 2018
    Inventors: Kunihiro OGURA, Yukio HOSOYA, Taiki AMEMIYA
  • Patent number: 9982215
    Abstract: A solid lubricant is supplied to a surface of an image carrier of an electrophotographic image forming apparatus. The solid lubricant contains a fatty acid metal salt and polypropylene, and the polypropylene has an acid value of 1 mg KOH/g or more. The solid lubricant is a solid substance of a melt mold containing the fatty acid metal salt and the polypropylene.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 29, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Taiki Amemiya, Yukio Hosoya, Kunihiro Ogura, Teruo Sasaki
  • Patent number: 9933745
    Abstract: A solid lubricant containing a fatty acid metal salt and a polyethylene having an acid value is prepared. The solid lubricant is disposed so as to be applied on a surface of an image bearing member of an image forming apparatus in electrophotography, and a lubricant layer is formed on the surface of the image bearing member with the solid lubricant.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: April 3, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Teruo Sasaki, Yukio Hosoya, Kunihiro Ogura, Taiki Amemiya
  • Patent number: 9841718
    Abstract: A lubricant applicator incorporated in a cleaning device disposed in an image forming apparatus having an image bearing member on which an image containing toner is formed, includes: a lubricant supplying unit that supplies lubricant; a brush roller that scrapes off the lubricant to apply the lubricant to a surface of the image bearing member; and a flicker member positioned on an upstream side from the lubricant supplying unit in a rotation direction of the brush roller, the flicker member coming into contact with the brush roller, wherein the flicker member is a plate-shaped member in which an opening is formed, the flicker member having elasticity to be allowed to elastically rock by coming into contact with the brush roller, and the opening is formed in a region with which the brush roller comes into contact.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 12, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kunihiro Ogura, Yukio Hosoya, Taiki Amemiya
  • Publication number: 20170275557
    Abstract: An object of the present invention is to provide a solid lubricant supplied to a surface of an image carrier of an electrophotographic image forming apparatus, wherein the solid lubricant comprises a fatty acid metal salt and polypropylene, and the polypropylene has an acid value of 1 mg KOH/g or more.
    Type: Application
    Filed: February 14, 2017
    Publication date: September 28, 2017
    Inventors: Taiki AMEMIYA, Yukio HOSOYA, Kunihiro OGURA, Teruo SASAKI
  • Publication number: 20170160696
    Abstract: A lubricant applicator incorporated in a cleaning device disposed in an image forming apparatus having an image bearing member on which an image containing toner is formed, includes: a lubricant supplying unit that supplies lubricant; a brush roller that scrapes off the lubricant to apply the lubricant to a surface of the image bearing member; and a flicker member positioned on an upstream side from the lubricant supplying unit in a rotation direction of the brush roller, the flicker member coming into contact with the brush roller, wherein the flicker member is a plate-shaped member in which an opening is formed, the flicker member having elasticity to be allowed to elastically rock by coming into contact with the brush roller, and the opening is formed in a region with which the brush roller comes into contact.
    Type: Application
    Filed: November 10, 2016
    Publication date: June 8, 2017
    Inventors: Kunihiro OGURA, Yukio HOSOYA, Taiki AMEMIYA
  • Publication number: 20170052501
    Abstract: A solid lubricant containing a fatty acid metal salt and a polyethylene having an acid value is prepared. The solid lubricant is disposed so as to be applied on a surface of an image bearing member of an image forming apparatus in electrophotography, and a lubricant layer is formed on the surface of the image bearing member with the solid lubricant.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 23, 2017
    Inventors: Teruo SASAKI, Yukio HOSOYA, Kunihiro OGURA, Taiki AMEMIYA
  • Patent number: 9213249
    Abstract: A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 ?m or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: December 15, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Futoshi Kadonome, Yukio Hosoya, Kazue Nakamura, Saburou Hiraoka, Yasuko Uchino
  • Publication number: 20140349228
    Abstract: A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 ?m or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Futoshi KADONOME, Yukio HOSOYA, Kazue NAKAMURA, Saburou HIRAOKA, Yasuko UCHINO
  • Publication number: 20140220488
    Abstract: Provided is an image forming method, in which excellent cleaning properties are obtained for a long period of time even when the process is employed to an image forming apparatus with a charging roller for charging a photoreceptor, and a favorable image can be formed while inhibiting occurrence of a black spots-like image defect even in a high temperature and high humidity environment. In the image forming method, charging of a photoreceptor in a charging step is performed by a charging roller. A toner for electrostatic image development includes toner base particles added with an external additive. The external additive contains at least first external additive particles composed of a polytetrafluoroethylene and second external additive particles composed of at least one selected from a fatty acid metal salt and an amide wax.
    Type: Application
    Filed: January 20, 2014
    Publication date: August 7, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Yukio HOSOYA, Futoshi KADONOME, Kazue NAKAMURA, Saburou HIRAOKA, Yasuko UCHINO
  • Patent number: 8726888
    Abstract: An atmosphere-opening structure is provided for a canister of a vehicle which can prevent invasion of dust and water drops from an atmosphere-opening passage by a simple configuration which is easy to produce. A fuel tray is provided around a fuel filler such that fuel leaking from the fuel filler to the outside upon refueling is received by the fuel tray. The fuel tray is covered with a fuel lid which can open and close the fuel filler from above. A drain hole for discharging fuel to the outside is provided in the fuel tray. An opening hose for communicating the canister and the atmosphere with each other is provided. An opening end of the opening hose is communicated with a position higher than the drain hole in the fuel tray.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: May 20, 2014
    Assignee: Honda Motor Co., Ltd
    Inventors: Naoki Yoshida, Yukio Hosoya, Kazunori Kawame, Shuhei Hatakeyama
  • Patent number: 8486601
    Abstract: A toner for electrostatic latent image development is disclosed comprising colored particles containing a binder resin and a colorant and external-additive particles attached to the surfaces of the colored particles, wherein the external-additive particles comprise resin particles covered with an inorganic layer, and the resin particles are bound to the inorganic layer by a siloxane bond. A preparation method of the toner is also disclosed.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: July 16, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Yukio Hosoya, Mikio Kouyama, Kenji Hayashi, Hiroaki Obata, Koji Shibata
  • Patent number: 8304157
    Abstract: A toner for an electrophotography and its manufacturing method are disclosed. The toner comprises toner particles containing a cross-linked polymer having two-valent crosslinking group represented by Formula (1), wherein, R1 is a hydrogen atom or a chlorine atom, R2 is a hydrogen atom, a chlorine atom or a methoxy group. The toner satisfies storage durability against heat as well as sufficient low temperature fixing ability.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: November 6, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mikio Kouyama, Ken Ohmura, Kenji Hayashi, Yukio Hosoya, Hiroaki Obata, Koji Shibata