Patents by Inventor Kazuya Nakagaki

Kazuya Nakagaki 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).

  • Cooling apparatus for internal combustion engine, method of controlling the same, and hybrid vehicle including the same
    Patent number: 8439003
    Abstract: A cooling apparatus for an internal combustion engine includes an engine cooling system that includes a water jacket, a radiator, and a circulation passage through which a coolant is circulated between the water jacket and the radiator, wherein the coolant is provided in the engine cooling system; a water pump that forcibly circulates the coolant provided in the engine cooling system when the water pump is operated; a reservoir tank in which the coolant is reserved, and into which gas flows from the engine cooling system while the reserved coolant flows out to the engine cooling system from the reservoir tank; and a forcible introduction portion that forcibly introduces the coolant from the reservoir tank into the engine cooling system before the internal combustion engine is started.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 14, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukari Araki, Nobutaka Takeuchi, Osamu Shintani, Kazuya Nakagaki, Daisuke Murakami, Masanori Shibata, Hisao Nonoyama
  • Engine coolant amount determining apparatus
    Patent number: 8292499
    Abstract: An engine coolant amount determining apparatus includes an electric water pump that can be operated intermittently while an engine is running, and a coolant temperature detecting means for detecting the temperature of coolant at a location higher than the water pump. The engine coolant amount determining apparatus also includes determining means for determining that the amount of coolant is equal to or less than a predetermined amount when the degree of change in the coolant temperature detected by the coolant temperature detecting means when the water pump is operated intermittently is large.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: October 23, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuya Nakagaki, Masanori Shibata, Masaho Narita, Hisao Nonoyama, Nobutaka Takeuchi, Yukari Araki, Hiroshi Kobae
  • ENGINE COOLANT AMOUNT DETERMINING APPARATUS
    Publication number: 20110038393
    Abstract: An engine coolant amount determining apparatus includes an electric water pump that can be operated intermittently while an engine is running, and a coolant temperature detecting means for detecting the temperature of coolant at a location higher than the water pump. The engine coolant amount determining apparatus also includes determining means for determining that the amount of coolant is equal to or less than a predetermined amount when the degree of change in the coolant temperature detected by the coolant temperature detecting means when the water pump is operated intermittently is large.
    Type: Application
    Filed: September 4, 2009
    Publication date: February 17, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuya Nakagaki, Masanori Shibata, Masaho Narita, Hisao Nonoyama, Nobutaka Takeuchi, Yukari Araki, Hiroshi Kobae
  • COOLING APPARATUS FOR INTERNAL COMBUSTION ENGINE, METHOD OF CONTROLLING THE SAME, AND HYBRID VEHICLE INCLUDING THE SAME
    Publication number: 20100050960
    Abstract: A cooling apparatus for an internal combustion engine includes an engine cooling system that includes a water jacket, a radiator, and a circulation passage through which a coolant is circulated between the water jacket and the radiator, wherein the coolant is provided in the engine cooling system; a water pump that forcibly circulates the coolant provided in the engine cooling system when the water pump is operated; a reservoir tank in which the coolant is reserved, and into which gas flows from the engine cooling system while the reserved coolant flows out to the engine cooling system from the reservoir tank; and a forcible introduction portion that forcibly introduces the coolant from the reservoir tank into the engine cooling system before the internal combustion engine is started.
    Type: Application
    Filed: May 4, 2009
    Publication date: March 4, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukari ARAKI, Nobutaka Takeuchi, Osamu Shintani, Kazuya Nakagaki, Daisuke Murakami, Masanori Shibata, Hisao Nonoyama