Patents by Inventor Kazuhiro Fukushima

Kazuhiro Fukushima 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: 10883153
    Abstract: In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660° C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: January 5, 2021
    Assignee: JTEKT CORPORATION
    Inventors: Kazutaka Matsukawa, Hiroyuki Ando, Yasunari Saito, Hideyuki Saito, Kazuhiro Fukushima, Tomoyuki Nanba
  • Publication number: 20160348737
    Abstract: In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660° C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 1, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Kazutaka MATSUKAWA, Hiroyuki ANDO, Yasunari SAITO, Hideyuki SAITO, Kazuhiro FUKUSHIMA, Tomoyuki Nanba
  • Patent number: 9034843
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) one or more member(s) selected from the group consisting of chondroitin sulfate, alginic acid and salts thereof; and (C) a nonionic surfactant.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 19, 2015
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Yasuko Matsumura, Kazuhiro Fukushima
  • Publication number: 20150064281
    Abstract: The present invention provides an ophthalmic composition containing (A) a biguanide-based disinfectant and (B) zinc chloride. According to the present invention, an ophthalmic composition having remarkably increased disinfection effects against Acanthamoeba is provided.
    Type: Application
    Filed: April 4, 2013
    Publication date: March 5, 2015
    Applicant: ROHTO PHARMACEUTICAL CO., LTD.
    Inventors: Kazuhiro Fukushima, Mariyo Kato, Yoshihiro Takai, Masashi Itoh
  • Publication number: 20140197003
    Abstract: A sliding member includes a base material portion formed of steel; a nitrogen diffusion layer with a thickness of 10 ?m to 50 ?m; and a nitrogen compound layer with a thickness of 10 ?m to 50 ?m. The nitrogen compound layer and the nitrogen diffusion layer are formed by performing a first heating process of performing heat treatment on a material formed of steel in an ammonia atmosphere at a temperature of 570° C. to 660° C., a second heating process of performing heat treatment on the material in a non-oxidizing and non-ammonia atmosphere at a temperature of 660° C. to 690° C., the temperature in the second heating process being higher than the temperature in the first heating process, and an oil cooling process of performing oil cooling treatment at an oil temperature of 60° C. to 80° C. subsequently to the second heating process.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 17, 2014
    Applicants: CNK Co., Ltd., JTEKT Corporation
    Inventors: Hiroyuki ANDO, Junji ANDO, Takuya TSUDA, Shuichi TAKAHASHI, Kiyoyuki HATTORI, Kazuhiro FUKUSHIMA, Tomoyuki NANBA, Hiroshi SHIRAYANAGI
  • Patent number: 8754029
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: June 17, 2014
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Yasuko Matsumura, Kazuhiro Fukushima
  • Publication number: 20130244978
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses or an ophthalmic composition/solution for contact lenses, which comprises (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.
    Type: Application
    Filed: May 8, 2013
    Publication date: September 19, 2013
    Applicant: ROHTO PHARMACEUTICAL CO., LTD.
    Inventors: Yasuko MATSUMURA, Kazuhiro FUKUSHIMA
  • Publication number: 20110223126
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.
    Type: Application
    Filed: May 20, 2011
    Publication date: September 15, 2011
    Inventors: Yasuko MATSUMURA, Kazuhiro Fukushima
  • Publication number: 20100249062
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a glucose.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 30, 2010
    Inventors: Yasuko Matsumura, Kazuhiro Fukushima
  • Publication number: 20100239518
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member (s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.
    Type: Application
    Filed: September 11, 2008
    Publication date: September 23, 2010
    Inventors: Yasuko Matsumura, Kazuhiro Fukushima
  • Publication number: 20100216741
    Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) one or more member(s) selected from the group consisting of chondroitin sulfate, alginic acid and salts thereof; and (C) a nonionic surfactant.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 26, 2010
    Applicant: ROHTO PHARMACEUTICAL CO., LTD.
    Inventors: Yasuko Matsumura, Kazuhiro Fukushima
  • Patent number: 4750515
    Abstract: A liquid storage tank having a feed port is provided with a float valve for opening and closing the same. The float valve includes a float member and a rod member having one end connected to the float member. The other end of the rod member is fitted into a valve seat, which is formed on the inner periphery of a feed pipe constituting the feed port, and is provided with a valve plug portion for opening and closing the valve seat. When the level of the liquid in the tank is lowered together with the float member, the rod member is tilted so that the valve plug portion is partially separated from the valve seat to open the feed port. When the float member is in a position at which the float member supports the rod member in a horizontal position, the valve plug portion is seated on the valve seat to close the feed port. The pressure of the supply of liquid acts on the valve plug portion to urge the valve seat portion against the valve seat.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: June 14, 1988
    Assignee: H. Ikeuchi & Co., Ltd.
    Inventors: Kazuhiro Fukushima, Norio Oonishi, Takeo Mizuno