Patents by Inventor Kenji Nakashima

Kenji Nakashima 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).

  • Patent number: 6441506
    Abstract: In a parallel hybrid vehicle employing a parallel hybrid system, using both an internal combustion engine and an electric motor generator for propulsion, a desired motor/generator torque is map-retrieved based on both the engine speed and throttle opening from a predetermined characteristic map in a fashion of feedforward processing. The signal indicative of the desired motor/generator torque is subjected to a low-pass filter that passes signals included in a frequency band lower than an oscillation frequency of powertrain torsional vibrations to remove the powertrain vibration frequency components. The map is preprogrammed so that the desired motor/generator torque is set at zero in a specified speed range lower than an engine idle speed.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: August 27, 2002
    Assignee: Jatco Transtechnology Ltd.
    Inventor: Kenji Nakashima
  • Publication number: 20010020789
    Abstract: In a parallel hybrid vehicle employing a parallel hybrid system, using both an internal combustion engine and an electric motor generator for propulsion, a desired motor/generator torque is map-retrieved based on both the engine speed and throttle opening from a predetermined characteristic map in a fashion of feedforward processing. The signal indicative of the desired motor/generator torque is subjected to a low-pass filter that passes signals included in a frequency band lower than an oscillation frequency of powertrain torsional vibrations to remove the powertrain vibration frequency components. The map is preprogrammed so that the desired motor/generator torque is set at zero in a specified speed range lower than an engine idle speed.
    Type: Application
    Filed: January 23, 2001
    Publication date: September 13, 2001
    Applicant: JATCO TRANSTECHNOLOGY LTD.
    Inventor: Kenji Nakashima
  • Patent number: 6268298
    Abstract: In a method of manufacturing a semiconductor device, after performing ion-implantation and before forming an oxide film, a silicon substrate is disposed within a furnace to undergo a heat treatment at a temperature equal to or higher than 950° C. for a specific time period (equal to or longer than 15 minutes). When performing the heat treatment and when raising a temperature up to the heat treatment temperature, oxygen is supplied together with nitrogen gas (inert gas). A supply amount of oxygen is controlled to be equal to or less than 5% when raising the temperature up to the heat treatment temperature, and to be equal to or less than 2% when performing the heat treatment. After the heat treatment, the oxidation film is formed. As a result, crystal defects (OSFs) are prevented from being produced on the silicon substrate surface.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Denso Corporation
    Inventors: Atsushi Komura, Takeshi Kuzuhara, Noriyuki Iwamori, Manabu Koike, Jiro Sakata, Hirofumi Funahashi, Kenji Nakashima, Masahiko Ishii
  • Patent number: 5436674
    Abstract: An apparatus capable of detecting with improved accuracy a motion vector representing an object moved on a picture plane comprises a memory section for storing an input picture signal renewed for every predetermined time interval, a spatial filter section for applying a spatial band limitation to two signal portions of the renewed picture signal stored in the memory, which signal portions corresponding to the different time intervals, and a detecting section including at least one detecting stage for detecting the motion vector in accordance with the gradient method on the basis of the two picture signals and a minute value to be added to a gradient determined from one reference picture signal represented by one of the two picture signals.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: July 25, 1995
    Assignee: Nippon Hoso Kyokai
    Inventors: Hiroshi Hirabayashi, Yuji Nojiri, Yasuaki Kanatsugu, Shoichi Suzuki, Hajime Sonehara, Junji Kumada, Iwao Obata, Kenji Nakashima