Patents by Inventor Hideyuki Tami

Hideyuki Tami 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).

  • 1,3,5-benzene tricarboxylic acid coolant composition
    Patent number: 7462295
    Abstract: A coolant composition having anticorrosion properties against both aluminum and magnesium is provided. A coolant composition comprises a melting point depression agent selected from glycols and alcohols as the main component, and it contains a corrosion inhibitor selected from fluorides and a tribasic acid of an organic carboxylic acid or an alkali metal salt thereof.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: December 9, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, Japan Chemical Industries Co.
    Inventors: Mikito Nishii, Hiroyuki Arai, Sadayoshi Suzuki, Hideyuki Tami, Shigehiko Sato
  • Coolant Composition, Cooling System And Process For Producing Coolant
    Publication number: 20070298291
    Abstract: When a coolant composition characterized in that ion exchange resin is uniformly dispersed in a water-based coolant is used as a coolant for a fuel cell stack from a viewpoint of high-voltage safety, eluted substance from parts in the cooling system is removed in the initial stages and with the passage of time, so as to stably maintain insulation properties of the coolant.
    Type: Application
    Filed: July 22, 2005
    Publication date: December 27, 2007
    Inventors: Mikito Nishii, Shinichi Ogura, Kazuhito Yaeda, Hideyuki Tami, Hirohisa Mochizuki, Nobukazu Takagi
  • Coolant composition
    Publication number: 20050274925
    Abstract: A coolant composition having anticorrosion properties against both aluminum and magnesium is provided. A coolant composition comprises a melting point depression agent selected from glycols and alcohols as the main component, and it contains a corrosion inhibitor selected from fluorides and a tribasic acid of an organic carboxylic acid or an alkali metal salt thereof.
    Type: Application
    Filed: May 17, 2005
    Publication date: December 15, 2005
    Inventors: Mikito Nishii, Hiroyuki Arai, Sadayoshi Suzuki, Hideyuki Tami, Shigehiko Sato
  • Liquid coolant compositions with anti-corrosive property containing magnesium and calcium compounds
    Patent number: 5718836
    Abstract: A liquid coolant composition with improved anti-corrosive property contains 85-99 weight % of an agent for lowering the melting point selected from the group consisting of alcohols and glycol, and 1-15 weight % of a rust preventive composition. The rust preventive composition contains 0.00005-0.02 weight % at elemental metal concentration of calcium compounds or a mixture of 0.00005-0.02 weight % each of calcium and magnesium compounds, and at least one kind of rust preventive selected from the group consisting of phosphates, borates, nitrates, molybdates, benzoates, silicates, triazoles, thiazoles, sebacic acid and octylic acid. Still better results are obtained if 0.001-0.02 weight % of at least one kind of polyphosphoric or polycarboxylic acids is additionally contained.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: February 17, 1998
    Assignee: Japan Chemical Industries Co., Ltd.
    Inventors: Yoshitaka Nakatani, Masamine Tanikawa, Hisaki Ito, Hideyuki Tami, Kazuhito Yaeda