Patents by Inventor Mitsutaka Komoike

Mitsutaka Komoike 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).

  • Focus servo actuating circuit and optical disk device incorporating same
    Patent number: 6654322
    Abstract: In a disk device, a focus servo activating circuit causes an RF amplifier 3 to amplify a focus error signal within a predetermined gain adjusting range, causes a control circuit 4 to multiply the amplitude of the focus error signal obtained by the RF amplifier 3 by two coefficients to calculate two threshold values, and starts up a focus servo upon the amplified focus error signal passing the two threshold values. The focus servo can be started up normally even for optical disks of extremely low reflectivity.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: November 25, 2003
    Assignees: Sanyo Electric Co., Ltd., Sanyo Technosound Co., Ltd.
    Inventors: Mitsutaka Komoike, Toru Kameyama
  • Focus servo actuating circuit and optical disk device incorporating same
    Publication number: 20020039332
    Abstract: In a disk device, a focus servo activating circuit causes an RF amplifier 3 to amplify a focus error signal within a predetermined gain adjusting range, causes a control circuit 4 to multiply the amplitude of the focus error signal obtained by the RF amplifier 3 by two coefficients to calculate two threshold values, and starts up a focus servo upon the amplified focus error signal passing the two threshold values. The focus servo can be started up normally even for optical disks of extremely low reflectivity.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 4, 2002
    Applicant: SANYO ELECTRIC CO. LTD
    Inventors: Mitsutaka Komoike, Toru Kameyama
  • Method for recording at least two picture signals and method of reproduction at least two picture signals
    Patent number: 5715358
    Abstract: In the event of recording a picture signal for left eye and a picture signal for right eye, a picture signal for one of right and left eyes limited in band by a low pass filter as being an additional signal and a picture signal for the other eye as being a primary signal, and the additional signal together with the primary signal are recorded on recording medium.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: February 3, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Ohnaka, Katsuhiko Matsushita, Daisuke Kishimoto, Minoru Takahashi, Minoru Kume, Mitsutaka Komoike, Katsunori Hirase, Tatsuo Tanaka, Hirotsugu Murashima, Osamu Idegata, Masafumi Nishi