Patents by Inventor Katsuichi Ohba

Katsuichi Ohba 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).

  • Complex operation input device
    Patent number: 6621016
    Abstract: In a complex operation input device according to the invention, a rotary electrical part manipulated with an operating member and a double-action push switch unit are arranged in a layered state in a direction of a rotation axis of the rotary electrical part. As a result, the device can be reduced in lateral size, and therefore it is made possible to provide a complex operation input device which can be used with a portable digital camera particularly suitably.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: September 16, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsuichi Ohba, Sachiko Homma
  • Complex operation input device
    Publication number: 20020166754
    Abstract: In a complex operation input device according to the invention, a rotary electrical part manipulated with an operating member and a double-action push switch unit are arranged in a layered state in a direction of a rotation axis of the rotary electrical part. As a result, the device can be reduced in lateral size, and therefore it is made possible to provide a complex operation input device which can be used with a portable digital camera particularly suitably.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 14, 2002
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Katsuichi Ohba, Sachiko Homma