Patents by Inventor Noboru Higashiyama

Noboru Higashiyama 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: 4389688
    Abstract: A magnetic head supporting mechanism comprises a damper placed between a spring operation part of a head-supporting plate spring for supporting and mounting a magnetic head and a holder for supporting and fixing said plate spring thereby damping vibration of said spring operation part by surface friction between said damper and said spring operation part.
    Type: Grant
    Filed: January 13, 1981
    Date of Patent: June 21, 1983
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Noboru Higashiyama
  • Patent number: 4349851
    Abstract: A magnetic head supporting mechanism for a double side type flexible disc drive apparatus is rotatably driven and contains a first and second magnetic head for read-out or write-in on each magnetic recording surface of the disc. The magnetic head is slidably contacted with the surface during the operation and includes a carriage having a first and second magnetic head which is positioned on a predetermined data track of the disc with the carriage having first and second arms and one of the arms being rotated with the first and second magnetic head assemblies being mounted on the first and second arm respectively. One of the magnetic head assemblies contains a resilient holder affixed to the arm and simultaneously fixed to the magnetic head while a gimbal spring which is disposed on the holder and has a surface fitted to the head also contains a projection which is formed on the other surface.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: September 14, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Higashiyama, Masaru Sasaki
  • Patent number: 4306258
    Abstract: A magnetic head supporting mechanism equipped with a magnetic head positioning carriage of a interchangeable double side type flexible disc drive apparatus comprising a carriage having a pair of arms which is rotated in detachable to a double side type flexible disc and arms, and arm parts in the arms and sliding type magnetic heads which are respectively mounted on the arm part and slide on the surface of the flexible disc and gimbal spring placed between each sliding type magnetic head and each arm part.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: December 15, 1981
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Higashiyama, Shin Isozaki, Kanji Sakurai, Masaru Sasaki