Patents by Inventor Hirokazu Niitsu

Hirokazu Niitsu 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).

  • Portable electronic device with a sliding mechanism for a component thereof
    Patent number: 7986985
    Abstract: A cellular phone device has an operation-unit casing, a sliding casing which is coupled to the operation-unit casing with the front face of the sliding casing facing the rear face of the operation-unit casing, and which slides with respect to the operation-unit casing in a direction parallel to the rear face of the operation-unit casing, and a direction input device provided on the rear face of the operation-unit casing. The sliding casing slides with respect to the operation-unit casing between a state where the direction input device is covered by the sliding casing and a state where a covering of the direction input device by the sliding casing is released.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: July 26, 2011
    Assignee: Casio Hitachi Mobile Communications Co., Ltd.
    Inventors: Hirokazu Niitsu, Masaki Uesugi, Yuuichi Oota, Motoyuki Tanaka
  • Electronic device
    Publication number: 20080261666
    Abstract: A cellular phone device has an operation-unit casing, a sliding casing which is coupled to the operation-unit casing with the front face of the sliding casing facing the rear face of the operation-unit casing, and which slides with respect to the operation-unit casing in a direction parallel to the rear face of the operation-unit casing, and a direction input device provided on the rear face of the operation-unit casing. The sliding casing slides with respect to the operation-unit casing between a state where the direction input device is covered by the sliding casing and a state where a covering of the direction input device by the sliding casing is released.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 23, 2008
    Applicant: Casio Hitachi Mobile Communications Co., Ltd.
    Inventors: Hirokazu Niitsu, Masaki Uesugi, Yuuichi Oota, Motoyuki Tanaka