Patents by Inventor Toshinari Koguchi

Toshinari Koguchi 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: 5999358
    Abstract: A system for providing stable tape-travel in a recording and/or reproducing apparatus includes a tape travel-direction switching mechanism and a tape tension regulating mechanism. The tape travel-direction switching mechanism forces a pendulum gear to engage one of a supply or take-up reel table when the traveling direction of tape is switched between forward and reverse directions while a capstan motor is turned off and a pinch roller presses the tape against the capstan so as to prevent the occurrence of slack in the tape. The tape tension regulating mechanism takes up the slack in the tape before a capstan axle causes the tape to travel in the reverse direction, so as to prevent the tape from being loosened when the traveling direction of the tape is switched from the forward direction to the reverse direction.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: December 7, 1999
    Assignee: Sony Corporation
    Inventors: Toshinari Koguchi, Toshiyuki Yamazaki, Mitsunori Matsumura
  • Patent number: 5991128
    Abstract: A tape guide system includes a rotary head drum inclined by a predetermined angle relative to a mechanical chassis of a recording and/or reproducing apparatus on which the head drum is mounted. A guide roller extends essentially vertically relative to the mechanical chassis on a side of the rotary head drum. An inclined guide post is arranged between the rotary head drum and the guide roller along a tape path. The inclined guide post is inclined at a first angle relative to the mechanical chassis. The first angle is a theoretical angle plus an additional offset angle. The offset angle lies in a direction parallel to a tape surface in contact with the side of the rotary head drum. The theoretical angle is derived from predetermined parameters including an inclination angle of the rotary head drum relative to the mechanical chassis and a tape-wrap angle at which tape is wound onto the rotary head drum.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: November 23, 1999
    Assignee: Sony Corporation
    Inventors: Toshinari Koguchi, Toshiyuki Yamazaki, Mitsunori Matsumura
  • Patent number: 5689385
    Abstract: A system for providing stable tape-travel in a recording and/or reproducing apparatus includes a tape travel-direction switching mechanism and a tape tension regulating mechanism. The tape travel-direction switching mechanism forces a pendulum gear to engage one of a supply or take-up reel table when the traveling direction of tape is switched between forward and reverse directions while a capstan motor is turned off and a pinch roller presses the tape against the capstan so as to prevent the occurrence of slack in the tape. The tape tension regulating mechanism takes up the slack in the tape before a capstan axle causes the tape to travel in the reverse direction, so as to prevent the tape from being loosened when the traveling direction of the tape is switched from the forward direction to the reverse direction.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 18, 1997
    Assignee: Sony Corporation
    Inventors: Toshinari Koguchi, Toshiyuki Yamazaki, Mitsunori Matsumura
  • Patent number: 5438466
    Abstract: A system for providing stable tape-travel in a recording and/or reproducing apparatus includes a tape travel-direction switching mechanism and a tape tension regulating mechanism. The tape travel-direction switching mechanism forces a pendulum gear to engage one of a supply or take-up reel table when the traveling direction of tape is switched between forward and reverse directions while a capstan motor is turned off and a pinch roller presses the tape against the capstan so as to prevent the occurrence of slack in the tape. The tape tension regulating mechanism takes up the slack in the tape before a capstan axle causes the tape to travel in the reverse direction, so as to prevent the tape from being loosened when the traveling direction of the tape is switched from the forward direction to the reverse direction.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: August 1, 1995
    Assignee: Sony Corporation
    Inventors: Toshinari Koguchi, Toshiyuki Yamazaki, Mitsunori Matsumura