Patents by Inventor Sachiko Homma

Sachiko Homma 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: 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
  • Patent number: 6525277
    Abstract: There is provided a multiple operation type input device that can perform self-returning rotating operation and two-stage push operation, and can be applied to a digital camera with a zoom function. A multiple operation type input device is provided with a rotary electrical part driven rotatably via a operation body, and a push switch arranged in an opening at the center portion of the operation body and driven by push via a key top, wherein the push switch has a first push switch element and a second push switch element having different actuation forces and stacked along the push operation direction of the key top. This provides the multiple operation type input device of compact size, which can perform rotating operation and two-stage push operation. Further, fixed contacts for engaging and disengaging click springs of the first and second push switch elements and a sliding pattern to be contacted slidably with a slider of the rotary electrical part are formed on a common flexible substrate.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: February 25, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsuichi Oba, Sachiko Homma
  • Patent number: 6492602
    Abstract: In a two-position pushbutton switch, a cushioning member is placed on at least one of first and second click springs, and the click spring is pressed via the cushioning member, thereby making a first press stroke long. A guide member is provided to guide the motion of a driving member. The driving member is slid along the guide member in the pressing direction of a key top.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: December 10, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Akira Asai, Shigenori Sato, Katsuichi Oba, Sachiko Homma
  • 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
  • Publication number: 20020056611
    Abstract: There is provided a multiple operation type input device that can perform self-returning rotating operation and two-stage push operation, and can be applied to a digital camera with a zoom function. A multiple operation type input device is provided with a rotary electrical part driven rotatably via a operation body, and a push switch arranged in an opening at the center portion of the operation body and driven by push via a key top, wherein the push switch has a first push switch element and a second push switch element having different actuation forces and stacked along the push operation direction of the key top. This provides the multiple operation type input device of compact size, which can perform rotating operation and two-stage push operation. Further, fixed contacts for engaging and disengaging click springs of the first and second push switch elements and a sliding pattern to be contacted slidably with a slider of the rotary electrical part are formed on a common flexible substrate.
    Type: Application
    Filed: June 8, 2001
    Publication date: May 16, 2002
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Katsuichi Oba, Sachiko Homma
  • Publication number: 20010013463
    Abstract: In a two-position pushbutton switch, a cushioning member is placed on at least one of first and second click springs, and the click spring is pressed via the cushioning member, thereby making a first press stroke long. A guide member is provided to guide the motion of a driving member. The driving member is slid along the guide member in the pressing direction of a key top.
    Type: Application
    Filed: February 6, 2001
    Publication date: August 16, 2001
    Applicant: Alps Electric Co., Ltd.
    Inventors: Akira Asai, Shigenori Sato, Katsuichi Oba, Sachiko Homma