Patents by Inventor Yoshitake OGURA

Yoshitake OGURA 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: 11090632
    Abstract: A filter includes resin particles and photocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum. The photocatalyst particles have a high photocatalytic function and are present on the surface of the resin particle. The filter is air permeable, transmits visible light, and has high deodorizing performance.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: August 17, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Sakae Takeuchi, Hideaki Yoshikawa, Hiroyoshi Okuno, Yoshitake Ogura, Takeshi Iwanaga
  • Publication number: 20200070125
    Abstract: A filter includes resin particles and photocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum. The photocatalyst particles are present on the surface of the resin particle.
    Type: Application
    Filed: March 25, 2019
    Publication date: March 5, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakae TAKEUCHI, Hideaki YOSHIKAWA, Hiroyoshi OKUNO, Yoshitake OGURA, Takeshi IWANAGA
  • Publication number: 20180284632
    Abstract: A liquid developer includes toner particles and a carrier liquid, wherein the toner particles include, as a binder resin, an amorphous polyester resin and a crystalline saturated aliphatic polyester resin having a composition ratio (C/O ratio) of carbon atoms and oxygen atoms of 3.4 or less, and with respect to a toner obtained by vacuum drying the toner particles, a crystal melting peak at a first temperature rise in differential heating calorimetry is 60° C. or more.
    Type: Application
    Filed: October 27, 2017
    Publication date: October 4, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Fumiaki MERA, Daisuke YOSHINO, Masahiro OKI, Yoshitake OGURA, Takako KOBAYASHI, Kazusei YOSHIDA, Manabu KAWASHIMA, Akira IMAI, Tetsuya TAGUCHI
  • Publication number: 20180275549
    Abstract: A liquid developer includes toner particles containing, as a binder resin, at least a polyester resin containing a monomer unit, which includes a linear or branched chain saturated hydrocarbon chain having 2 to 5 carbon atoms between ester bonds, in a range of from 5 mol % to 25 mol % with respect to all monomer units included in the polyester resin, and a colorant; and a carrier liquid including an insulating liquid.
    Type: Application
    Filed: December 4, 2017
    Publication date: September 27, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazusei YOSHIDA, Daisuke YOSHINO, Masahiro OKI, Akira IMAI, Yoshitake OGURA, Takako KOBAYASHI, Koji HORIBA, Manabu KAWASHIMA, Fumiaki MERA, Tetsuya TAGUCHI
  • Patent number: 9766565
    Abstract: A liquid developer includes a carrier liquid and a toner including a urethane-modified acrylic resin.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: September 19, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Oki, Koji Horiba, Takako Kobayashi, Akira Imai, Yoshitake Ogura, Hiroyuki Moriya, Daisuke Yoshino
  • Publication number: 20170235242
    Abstract: A liquid developer includes a carrier liquid and a toner including a urethane-modified acrylic resin.
    Type: Application
    Filed: August 12, 2016
    Publication date: August 17, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masahiro OKI, Koji HORIBA, Takako KOBAYASHI, Akira IMAI, Yoshitake OGURA, Hiroyuki MORIYA, Daisuke YOSHINO
  • Patent number: 9568849
    Abstract: A liquid developer contains a carrier liquid and a toner particle which contains a binder resin, wherein the toner particles have a content of aluminum measured by fluorescent X-ray analysis in a range of from 0.04% by weight to 0.1% by weight of total elements.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: February 14, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akira Imai, Koji Horiba, Daisuke Yoshino, Takako Kobayashi, Masahiro Oki, Yoshitake Ogura, Hiroyuki Moriya, Yoshihiro Inaba
  • Publication number: 20160202626
    Abstract: A liquid developer contains a carrier liquid and a toner particle which contains a binder resin, wherein the toner particles have a content of aluminum measured by fluorescent X-ray analysis in a range of from 0.04% by weight to 0.1% by weight of total elements.
    Type: Application
    Filed: August 19, 2015
    Publication date: July 14, 2016
    Inventors: Akira IMAI, Koji HORIBA, Daisuke YOSHINO, Takako KOBAYASHI, Masahiro OKI, Yoshitake OGURA, Hiroyuki MORIYA, Yoshihiro INABA
  • Patent number: 8550877
    Abstract: A method includes: charging a polishing material into a polishing apparatus that polishes a surface of a cylindrical film including a resin; alternately and repeatedly performing a surface-roughening operation of causing the polishing material to collide with the surface of the cylindrical film, thereby roughening the surface, and a cylindrical film replacing operation of replacing the cylindrical film on which roughening of the surface has been completed with another cylindrical film on which roughening of the surface has not been completed; replacing the polishing material by partially discharging the polishing material, and charging a new polishing material so that the percentage of the new polishing material with respect to the total amount of the polishing material after the new polishing material is charged becomes 30% by weight or more; and alternately and repeatedly performing the surface-roughening operation and the cylindrical film replacing operation again.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: October 8, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroshi Shibuya, Yoshitake Ogura, Masato Saito
  • Publication number: 20120077420
    Abstract: A method includes: charging a polishing material into a polishing apparatus that polishes a surface of a cylindrical film including a resin; alternately and repeatedly performing a surface-roughening operation of causing the polishing material to collide with the surface of the cylindrical film, thereby roughening the surface, and a cylindrical film replacing operation of replacing the cylindrical film on which roughening of the surface has been completed with another cylindrical film on which roughening of the surface has not been completed; replacing the polishing material by partially discharging the polishing material, and charging a new polishing material so that the percentage of the new polishing material with respect to the total amount of the polishing material after the new polishing material is charged becomes 30% by weight or more; and alternately and repeatedly performing the surface-roughening operation and the cylindrical film replacing operation again.
    Type: Application
    Filed: February 7, 2011
    Publication date: March 29, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroshi SHIBUYA, Yoshitake OGURA, Masato SAITO