Patents by Inventor Naoto Koyamaishi

Naoto Koyamaishi 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).

  • Publication number: 20160251589
    Abstract: A composition for a lubricating film includes molybdenum disulfide particles which are dispersed, and a binding resin, and is a composition for coating a surface of a base material made of metal with a lubricating film in which the molybdenum disulfide particles are bound together by the binding resin. The composition for a lubricating film contains 50 mass % to 70 mass % of the molybdenum disulfide particles with respect to a total amount of the molybdenum disulfide particles and the binding resin. An average particle size of the molybdenum disulfide particles is in a range of 0.1 ?m to 3.0 ?m.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ART METAL MFG, CO., LTD., AKROS Co., Ltd.
    Inventors: Misato KISHI, Yoshio FUWA, Koji SAITO, Keiji HAYASHI, Ichiro YAMAGUCHI, Naoto KOYAMAISHI, Shinya TERADA, Nobuyuki FUJIWARA, Yuichiro KANAZAWA, Shin MAKINO, Keisuke MIYAMOTO, Masako JIMBO
  • Patent number: 8651093
    Abstract: A sludge adhesion inhibiting structure for an internal combustion engine according to the present invention is characterized in that a sludge inhibiting layer inhibiting generation or adhesion of sludge is formed on a surface of an area inside the internal combustion engine into which oil as a liquid does not always spread and which is contacted by oil mist as a gas. Preferably, the sludge inhibiting layer is made up of a solid alkali substance. Furthermore, the sludge inhibiting layer is provided in a head cover and formed on an inner surface of an oil separator chamber separating the oil from a blow-by gas.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoto Koyamaishi, Toshiaki Tanaka, Tetsushi Suzuki, Takashi Shimura, Teru Ogawa
  • Patent number: 8556514
    Abstract: A sliding support structure includes: a support member (12; 106) and a shaft member (10; 120) that relatively rotates with respect to the support member (12; 106) wherein lubricating oil is supplied to between a sliding surface of the shaft member and a sliding surface of the support member, the support member (12; 106) has a sliding surface portion (x) that corresponds to a load concentrating portion between the shaft member (10; 120) and the support member (12; 106), and sliding surface regions (Ya, Yb) that are higher in oil repellency than the sliding surface portion are respectively provided on upstream and downstream sides of the sliding surface portion in a flow direction of the lubricating oil.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: October 15, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Kogyo Co., Ltd.
    Inventors: Motoichi Murakami, Shoji Miyazaki, Yoshiki Ariizumi, Ryuji Koike, Naoto Koyamaishi, Shuzou Sanda, Shigeru Hotta, Katsuhiro Ashihara, Yasuhiro Hikita
  • Patent number: 8499750
    Abstract: An oil mist separator (100) for an internal combustion engine that separates an oil component in a gas, which is introduced from a crankcase of the internal combustion engine, from the gas, includes a porous filter (150) that separates, from the gas, the oil component in the gas, the porous filter (150) being provided in a passage, through which the gas passes, and being coated with a counteragent for neutralizing an acid substance.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: August 6, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoto Koyamaishi, Tetsushi Suzuki, Motoichi Murakami, Norio Inami, Ryuji Koike
  • Publication number: 20120148180
    Abstract: A sliding support structure includes: a support member (12; 106) and a shaft member (10; 120) that relatively rotates with respect to the support member (12;106) wherein lubricating oil is supplied to between a sliding surface of the shaft member and a sliding surface of the support member, the support member (12; 106) has a sliding surface portion (x) that corresponds to a load concentrating portion between the shaft member (10; 120) and the support member (12; 106), and sliding surface regions (Ya, Yb) that are higher in oil repellency than the sliding surface portion are respectively provided on upstream and downstream sides of the sliding surface portion in a flow direction of the lubricating oil.
    Type: Application
    Filed: August 31, 2010
    Publication date: June 14, 2012
    Applicants: Taiho Kogyo Co., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motoichi Murakami, Shoji Miyazaki, Yoshiki Ariizumi, Ryuji Koike, Naoto Koyamaishi, Shuzou Sanda, Shigeru Hotta, Katsuhiro Ashihara, Yasuhiro Hikita
  • Publication number: 20110056455
    Abstract: An oil mist separator (100) for an internal combustion engine that separates an oil component in a gas, which is introduced from a crankcase of the internal combustion engine, from the gas, includes a porous filter (150) that separates, from the gas, the oil component in the gas, the porous filter (150) being provided in a passage, through which the gas passes, and being coated with a counteragent for neutralizing an acid substance.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 10, 2011
    Inventors: Naoto Koyamaishi, Tetsushi Suzuki, Motoichi Murakami, Norio Inami, Ryuji Koike
  • Publication number: 20100024762
    Abstract: A sludge adhesion inhibiting structure for an internal combustion engine according to the present invention is characterized in that a sludge inhibiting layer inhibiting generation or adhesion of sludge is formed on a surface of an area inside the internal combustion engine into which oil as a liquid does not always spread and which is contacted by oil mist as a gas. Preferably, the sludge inhibiting layer is made up of a solid alkali substance. Furthermore, the sludge inhibiting layer is provided in a head cover and formed on an inner surface of an oil separator chamber separating the oil from a blow-by gas.
    Type: Application
    Filed: November 9, 2007
    Publication date: February 4, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto Koyamaishi, Toshiaki Tanaka, Tetsushi Suzuki, Takashi Shimura, Teru Ogawa