Patents by Inventor Youko Nakayama

Youko Nakayama 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).

  • Masterbatch pellet mixture
    Patent number: 7247661
    Abstract: A mixture including a high specific gravity masterbatch pellets group (A) with specific gravity within a range from 1.8 to 3.5, and a low specific gravity masterbatch pellets group (B) with specific gravity within a range from 0.5 to 1.6. The high specific gravity masterbatch pellets group (A) comprises m different columnar masterbatch pellets, each with a different specific gravity, and the low specific gravity masterbatch pellets group (B) comprises n different columnar masterbatch pellets, each with a different specific gravity. The high specific gravity masterbatch pellets group (A) and the low specific gravity masterbatch pellets group (B) satisfy a formula (1) shown below: 0.5 ? ? ( mm - 1 ) ? ? p = 1 m ? ( Hp Sp × Rp ) - ? q = 1 n ? ( Hq Sq × Rq ) ? 12 ? ? ( mm - 1 ) ? .
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: July 24, 2007
    Assignee: Dainippon Ink and Chemical, Inc.
    Inventors: Haruo Otake, Yoshiro Tomita, Hideki Uchimi, Youko Nakayama
  • Internal combustion engine, and control apparatus and method thereof
    Publication number: 20060225698
    Abstract: The amount of air to be introduced is controlled for each cylinder, whereby it is intended to make it possible to control the torque generated in each cylinder, perform an ultra-lean burn operation, purify the exhaust gas, and increase the output of an engine. An air flow control valve adapted to be on-off controlled in accordance with an operated quantity of an accelerator pedal is disposed in each branch pipe or intake port. The air flow control valve may be a throttle valve disposed in each branch pipe or it may be a variable intake valve for opening and closing the intake port.
    Type: Application
    Filed: June 9, 2006
    Publication date: October 12, 2006
    Inventors: Toshiharu Nogi, Takuya Shiraishi, Minoru Ohsuga, Youko Nakayama, Noboru Tokuyasu
  • Masterbatch pellet mixture
    Publication number: 20050245685
    Abstract: A mixture including a high specific gravity masterbatch pellets group (A) with specific gravity within a range from 1.8 to 3.5, and a low specific gravity masterbatch pellets group (B) with specific gravity within a range from 0.5 to 1.6. The high specific gravity masterbatch pellets group (A) comprises m different columnar masterbatch pellets, each with a different specific gravity, and the low specific gravity masterbatch pellets group (B) comprises n different columnar masterbatch pellets, each with a different specific gravity. The high specific gravity masterbatch pellets group (A) and the low specific gravity masterbatch pellets group (B) satisfy a formula (1) shown below: 0.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 3, 2005
    Applicant: DAINIPPON INK AND CHEMICALS, INC.,
    Inventors: Haruo Otake, Yoshiro Tomita, Hideki Uchimi, Youko Nakayama
  • Internal combustion engine, and control apparatus and method thereof
    Publication number: 20050034706
    Abstract: The amount of air to be introduced is controlled for each cylinder, whereby it is intended to make it possible to control the torque generated in each cylinder, perform an ultra-lean burn operation, purify the exhaust gas, and increase the output of an engine. An air flow control valve adapted to be on-off controlled in accordance with an operated quantity of an accelerator pedal is disposed in each branch pipe or intake port. The air flow control valve may be a throttle valve disposed in each branch pipe or it may be a variable intake valve for opening and closing the intake port.
    Type: Application
    Filed: September 24, 2004
    Publication date: February 17, 2005
    Inventors: Toshiharu Nogi, Takuya Shiraishi, Minoru Ohsuga, Youko Nakayama, Noboru Tokuyasu
  • Internal combustion engine, and control apparatus and method thereof
    Publication number: 20020121266
    Abstract: The method of air to be introduced is controlled for each cylinder, whereby it is intended to make it possible to control the torque generated in each cylinder, perform an ultra-lean burn operation, purify the exhaust gas, and increase the output of an engine.
    Type: Application
    Filed: April 30, 2002
    Publication date: September 5, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Toshiharu Nogi, Takuya Shiraishi, Minoru Ohsuga, Youko Nakayama, Noboru Tokuyasu