Patents by Inventor Yasuo Ooka

Yasuo Ooka 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).

  • Fingerprint registering method and fingerprint checking device
    Patent number: 6314196
    Abstract: The present invention can achieve the reliability and simplicity in registering a fingerprint by indicating the quality of a fingerprint image by the number of pseudo minutiae, improve the security of an entrance/exit control system to register a fingerprint, detect the direction of ridge lines of a fingerprint accurately as much as possible, improve the security in checking a fingerprint remarkably, collect renewed registered fingerprint data by a host device and hold the registered fingerprint data of each gate as the latest fingerprint data, improve the operability by enabling to use identification numbers having the less number of digits, and register a fingerprint having a high match rate by automatically applying spatial filtering in re-registering only.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: November 6, 2001
    Assignee: Fujitsu Denso Ltd.
    Inventors: Masahiko Yamaguchi, Yasuo Ooka, Naoya Uchida, Atsushi Ogawa, Kiyohide Taniguchi
  • Fingerprint registering method and fingerprint checking device
    Publication number: 20010036301
    Abstract: The present invention can achieve the reliability and simplicity in registering a fingerprint by indicating the quality of a fingerprint image by the number of pseudo minutiae, improve the security of an entrance/exit control system to register a fingerprint, detect the direction of ridge lines of a fingerprint accurately as much as possible, improve the security in checking a fingerprint remarkably, collect renewed registered fingerprint data by a host device and hold the registered fingerprint data of each gate as the latest fingerprint data, improve the operability by enabling to use identification numbers having the less number of digits, and register a fingerprint having a high match rate by automatically applying spatial filtering in re-registering only.
    Type: Application
    Filed: June 22, 2001
    Publication date: November 1, 2001
    Applicant: Fujitsu Denso Ltd. Japanese Corporation
    Inventors: Masahiko Yamaguchi, Yasuo Ooka, Naoya Uchida, Atsushi Ogawa, Kiyohide Taniguchi