Patents by Inventor Keiko Sano

Keiko Sano 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: 11939459
    Abstract: An object of the present invention is to provide a photosensitive resin composition having good liquid repellency. The photosensitive resin composition of the present invention at least contains a fluororesin having a crosslinking site, a solvent, and a photopolymerization initiator, and the fluororesin contains a repeating unit derived from a hydrocarbon having a fluorine atom.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: March 26, 2024
    Assignee: Central Glass Company, Limited
    Inventors: Yuzuru Kaneko, Satoru Miyazawa, Keiko Sasaki, Asuka Sano, Yusuke Nomura
  • Patent number: 8412014
    Abstract: An optical fiber ribbon is capable of branching by means of any tool. The optical fiber ribbon is comprised of a plurality of optical fibers running in parallel, each of the optical fibers having an allowable radius of curvature; a blanket sheath totally covering the plurality of the optical fibers; one or more concavities formed at any one or more intermediates among the optical fibers; and slits respectively arranged in series at a regular interval along the concavities, the slits penetrating the blanket sheath and allowing the tool to be inserted and the blanket sheath to split by means of movement of the tool along the concavities. The length of each slit prior to insertion of the tool is so determined that flexures of the optical fibers induced by the tool widening the slits do not exceed the allowable radius of curvature.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: April 2, 2013
    Assignee: Fujikura Ltd.
    Inventors: Yukiko Sato, Keiko Sano, Naoki Okada
  • Publication number: 20100296781
    Abstract: An optical fiber ribbon is capable of branching by means of any tool. The optical fiber ribbon is comprised of a plurality of optical fibers running in parallel, each of the optical fibers having an allowable radius of curvature; a blanket sheath totally covering the plurality of the optical fibers; one or more concavities formed at any one or more intermediates among the optical fibers; and slits respectively arranged in series at a regular interval along the concavities, the slits penetrating the blanket sheath and allowing the tool to be inserted and the blanket sheath to split by means of movement of the tool along the concavities. The length of each slit prior to insertion of the tool is so determined that flexures of the optical fibers induced by the tool widening the slits do not exceed the allowable radius of curvature.
    Type: Application
    Filed: December 25, 2008
    Publication date: November 25, 2010
    Applicant: FUJIKURA LTD.
    Inventors: Yukiko Sato, Keiko Sano, Naoki Okada
  • Publication number: 20030068341
    Abstract: An O/W cream contains maxacalcitol as an active ingredient. The maxacalcitol is present in both the oil phase and in the water phase of the cream.
    Type: Application
    Filed: November 13, 2002
    Publication date: April 10, 2003
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Satoshi Yasukawa, Takashi Uchio, Keiko Sano
  • Publication number: 20020192254
    Abstract: The present invention aims to provide an O/W type creams showing improved skin absorption and heat stability of maxacalcitol as an active ingredient. The present invention provides O/W type creams containing maxacalcitol in the oil phase and/or water phase, more specifically O/W creams containing maxacalcitol and an emulsifier wherein maxacalcitol exists in the oil phase as well as O/W creams wherein maxacalcitol exists in the water phase.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 19, 2002
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Satoshi Yasukawa, Takashi Uchio, Keiko Sano
  • Patent number: 6491936
    Abstract: The present invention aims to provide an O/W type creams showing improved skin absorption and heat stability of maxacalcitol as an active ingredient. The present invention provides O/W type creams containing maxacalcitol in the oil phase and/or water phase, more specifically O/W creams containing maxacalcitol and an emulsifier wherein maxacalcitol exists in the oil phase as well as O/W creams wherein maxacalcitol exists in the water phase.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: December 10, 2002
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Satoshi Yasukawa, Takashi Uchio, Keiko Sano
  • Patent number: 6432422
    Abstract: The present invention aims to provide an O/W type cream showing improved skin absorption and heat stability of maxacalcitol as an active ingredient. The present invention provides O/W type creams containing maxacalcitol in the oil phase and/or water phase, more specifically O/W creams containing maxacalcitol and an emulsifier wherein maxacalcitol exists in the oil phase as well as O/W creams wherein maxacalcitol exists in the water phase.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: August 13, 2002
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Satoshi Yasukawa, Takashi Uchio, Keiko Sano
  • Patent number: 6395287
    Abstract: The present invention aims to provide a lotion stably maintaining maxacalcitol and having excellent percutaneous absorption. The present invention provides lotions comprising maxacalcitol as an active ingredient and a nonionic surfactant as an additive, as well as lotions which further contains a polyhydric alcohol and a solubilizer as additives besides a nonionic surfactant.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: May 28, 2002
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Eiichi Miyauchi, Yasuyuki Sakai, Keiko Sano
  • Publication number: 20020051803
    Abstract: The present invention aims to provide a lotion stably maintaining maxacalcitol and having excellent percutaneous absorption. The present invention provides lotions comprising maxacalcitol as an active ingredient and a nonionic surfactant as an additive, as well as lotions which further contains a polyhydric alcohol and a solubilizer as additives besides a nonionic surfactant.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 2, 2002
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Eiichi Miyauchi, Yasuyuki Sakai, Keiko Sano
  • Patent number: 6372233
    Abstract: The present invention aims to provide a lotion stably maintaining maxacalcitol and having excellent percutaneous absorption. The present invention provides lotions comprising maxacalcitol as an active ingredient and a nonionic surfactant as an additive, as well as lotions which further contains a polyhydric alcohol and a solubilizer as additives besides a nonionic surfactant.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: April 16, 2002
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Eiichi Miyauchi, Yasuyuki Sakai, Keiko Sano