Patents by Inventor Akitoshi Miyashita

Akitoshi Miyashita 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).

  • Combined variable resistor assembly provided with position indicator means
    Patent number: 3952277
    Abstract: There is provided a combined variable resistor assembly provided with position indicator means for indicating positions of individual variable resistors by respective bright spots adapted to be moved by manipulating the associated variable resistors. This variable resistor assembly may find use mainly for electronic tuners, and with which the present states of the individual variable resistors for volume control, balance control, sound quality control and so forth can be known at a glance at the indicator means.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: April 20, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Matsuo Nishioka, Shunzo Oka, Akitoshi Miyashita, Kazuo Oshima
  • Combined variable resistor assembly provided with tap position indicator means
    Patent number: 3936795
    Abstract: There is provided a combined variable resistor assembly provided with position indicator means for indicating positions of individual variable resistors by respective bright spots adapted to be moved by manipulating the associated variable resistors. This variable resistor assembly may find use mainly for electronic tuners, and with which the present states of the individual variable resistors for volume control, balance control, sound quality control and so forth can be known at a glance at the indicator means.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: February 3, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Matsuo Nishioka, Shunzo Oka, Akitoshi Miyashita, Kazuo Oshima