Patents by Inventor Mikihiko Sakakibara

Mikihiko Sakakibara 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).

  • Genuineness detecting system and method for using genuineness detecting film
    Patent number: 6628439
    Abstract: An authenticity identifying film (10) has a reflective film (11) having a circularly polarized light selectivity to reflect at least only either of right-handed circularly polarized light and left-handed circularly polarized light of incident light to produce reflected light. The reflective film (11) is provided with a hologram forming part (11a). The hologram forming part (11a) reflects circularly polarized light of the same circular polarization as that of the reflected light in a direction different from that of the reflected light to form a holographic image. The reflected light reflected by the reflective film (11) and the holographic image formed by the hologram forming part (11a) are detected by detectors disposed at different positions, respectively.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: September 30, 2003
    Assignees: Nippon Mitsubishi Oil Corporation, NHK Spring Ltd., Dai Nippon Printing Co., Ltd.
    Inventors: Akihito Shiozawa, Shinichiro Suzuki, Suzushi Nishimura, Hidekazu Hoshino, Itsuo Takeuchi, Mikihiko Sakakibara, Masumi Yokoyama
  • GENUINENESS DETECTNG SYSTEM AND METHOD FOR USING GENUINENESS DETECTING FILM
    Publication number: 20020051264
    Abstract: An authenticity identifying film (10) has a reflective film (11) having a circularly polarized light selectivity to reflect at least only either of right-handed circularly polarized light and left-handed circularly polarized light of incident light to produce reflected light. The reflective film (11) is provided with a hologram forming part (11a). The hologram forming part (11a) reflects circularly polarized light of the same circular polarization as that of the reflected light in a direction different from that of the reflected light to form a holographic image. The reflected light reflected by the reflective film (11) and the holographic image formed by the hologram forming part (11a) are detected by detectors disposed at different positions, respectively.
    Type: Application
    Filed: April 27, 2000
    Publication date: May 2, 2002
    Inventors: AKIHITO SHIOZAWA, SHINICHIRO SUZUKI, SUZUSHI NISHIMURA, HIDEKAZU HOSHINO, ITSUO TAKEUCHI, MIKIHIKO SAKAKIBARA, MASUMI YOKOYAMA