Patents by Inventor Kyosuke Ikuma

Kyosuke Ikuma 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).

  • Noise reducing grease composition
    Patent number: 9422500
    Abstract: The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-?-olefins and ethylene-?-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm2/s at 40° C., the first base oil having a kinematic viscosity of 300 to 1200 mm2/s at 40° C.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: August 23, 2016
    Assignees: KYODO YUSHI CO., LTD., DENSO CORPORATION
    Inventors: Kyosuke Ikuma, Mitsuhiro Kakizaki, Koji Sakakibara, Shozo Ikejima, Suehiro Okazaki, Koji Hisaka
  • Grease composition comprising polymer alloy, a structure part enclosing the same and a method for producing the grease composition
    Patent number: 8975218
    Abstract: A grease composition having a thickener, a base oil containing a hydrocarbon oil, and a polymer alloy of an olefin copolymer and a styrene-based copolymer is disclosed.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: March 10, 2015
    Assignee: Kyodo Yushi Co., Ltd.
    Inventors: Kyosuke Ikuma, Yosuke Takao, Takashi Takizawa, Iwaki Hirooka, Yosuke Endo, Akihiko Urashima
  • GREASE COMPOSITION COMPRISING POLYMER ALLOY, A STRUCTURE PART ENCLOSING THE SAME AND A METHOD FOR PRODUCING THE GREASE COMPOSITION
    Publication number: 20120214721
    Abstract: A grease composition having a thickener, a base oil containing a hydrocarbon oil, and a polymer alloy of an olefin copolymer and a styrene-based copolymer is disclosed.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 23, 2012
    Applicant: KYODO YUSHI CO., LTD.
    Inventors: Kyosuke IKUMA, Yosuke TAKAO, Takashi TAKIZAWA, Iwaki HIROOKA, Yosuke ENDO, Akihiko URASHIMA
  • NOISE REDUCING GREASE COMPOSITION
    Publication number: 20110294705
    Abstract: The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on, the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-?-olefins and ethylene-?-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm2/s at 40° C., the first base oil having a kinematic viscosity of 300 to 1200 rnm2/s at 40° C.
    Type: Application
    Filed: February 15, 2010
    Publication date: December 1, 2011
    Applicants: DENSO CORPORATION, KYODO YUSHI CO., LTD.
    Inventors: Kyosuke Ikuma, Mitsuhiro Kakizaki, Koji Sakakibara, Shozo Ikejima, Suehiro Okazaki, Koji Hisaka
  • Grease composition for harnesses
    Publication number: 20060205613
    Abstract: The present invention relates to a grease composition for use in harnesses, which comprises a thickening agent, a base oil and additives, wherein the base oil comprises a polyoxyalkylene glycol ether and the additives comprise a quinoline compound and a benzotriazole compound. The grease composition is quite excellent in the corrosion resistance, the oxidation stability and the compatibility with materials such as olefinic elastomer.
    Type: Application
    Filed: March 7, 2006
    Publication date: September 14, 2006
    Applicants: Kyodo Yushi Co., Ltd., Denso Corporation
    Inventors: Kyosuke Ikuma, Ko Yaegashi, Hiroshi Kimura, Keiji Sasaki, Shozo Ikejima, Masahiko Sugaya, Masahiko Morikawa