Patents by Inventor Yoshiharu Ozaki

Yoshiharu Ozaki 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: 6504485
    Abstract: Monitoring and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect. The illumination conditions of respective signal lights are detected using as sensor device, and when the number of illuminated or non-illuminated signal lights is a predetermined number, a normal judgment output of logic value 1 corresponding to a high energy condition is generated while, when the number of illuminated or non-illuminated signal lights is not the predetermined number, an abnormal judgment output of logic value 0 corresponding to a low energy condition is generated. As a result, when a fault in the monitoring apparatus stops the output, the resultant output condition is the same as for a danger condition due to a signal light abnormality, resulting in an extremely safe signal light monitoring and control with excellent fail-safe characteristics.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: January 7, 2003
    Assignee: The Nippon Signal Co., Ltd.
    Inventors: Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Hidetoshi Fujimoto, Junya Toda, Koichi Futsuhara, Norihiro Asada
  • Publication number: 20020008629
    Abstract: The invention relates to monitoring apparatus and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect.
    Type: Application
    Filed: January 9, 2001
    Publication date: January 24, 2002
    Applicant: The Nippon Signal Co., Ltd.
    Inventors: Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Hidetoshi Fujimoto, Junya Toda, Koichi Futsuhara, Norihiro Asada
  • Patent number: 6184799
    Abstract: Monitoring and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect. The illumination conditions of respective signal lights are detected using as sensor device, and when the number of illuminated or non-illuminated signal lights is a predetermined number, a normal judgment output of logic value 1 corresponding to a high energy condition is generated while, when the number of illuminated or non-illuminated signal lights is not the predetermined number, an abnormal judgment output of logic value 0 corresponding to a low energy condition is generated. As a result, when a fault in the monitoring apparatus stops the output, the resultant output condition is the same as for a danger condition due to a signal light abnormality, resulting in an extremely safe signal light monitoring and control with excellent fail-safe characteristics.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: February 6, 2001
    Assignee: The Nippon Signal Co., Ltd.
    Inventors: Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Hidetoshi Fujimoto, Junya Toda, Koichi Futsuhara, Norihiro Asada
  • Patent number: 5674771
    Abstract: A structure of a capacitor includes a first metal interconnection layer, a dielectric film, and a second metal interconnection layer. The dielectric film is formed on the first metal interconnection layer. The second metal interconnection layer is formed on the dielectric film. The dielectric film is a dielectric film formed by bias-ECR plasma CVD.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: October 7, 1997
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Katsuyuki Machida, Kazuo Imai, Hideo Yoshino, Yoshiharu Ozaki, Kenji Miura
  • Patent number: 5661560
    Abstract: In a photomask inspecting method, a photomask is inspected on the basis of the difference between the polarized state of elliptical light produced upon superposition of two linearly polarized light beams having orthogonal polarization directions and passing through two different optical paths and the polarized state of elliptical light produced when two linearly polarized light beams are superposed on each other after a target portion of a photomask is set in the optical path of one of the linearly polarized light beams. A photomask inspecting apparatus is also disclosed.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: August 26, 1997
    Assignee: Nippon Telegraph and Telephone Public Corporation
    Inventor: Yoshiharu Ozaki
  • Patent number: 5548401
    Abstract: In a photomask inspecting method, a photomask is inspected on the basis of the difference between the polarized state of elliptical light produced upon superposition of two linearly polarized light beams having orthogonal polarization directions and passing through two different optical paths and the polarized state of elliptical light produced when two linearly polarized light beams are superposed on each other after a target portion of a photomask is set in the optical path of one of the linearly polarized light beams. A photomask inspecting apparatus is also disclosed.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: August 20, 1996
    Assignee: Nippon Telegraph and Telephone Public Corporation
    Inventor: Yoshiharu Ozaki
  • Patent number: 4746468
    Abstract: A manufacturing method for ceramic microspheres including the steps of; forming a suspension of ceramic fine powders as a dispersed phase and water as a dispersion medium; dispersing the suspension as droplets in a high boiling point liquid which has substantially the same specific gravity as the suspension and which is immiscible with water and nonreactive with the ceramic fine powder to make spherical particles; and subjecting the resultant product to drying and calcination.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: May 24, 1988
    Assignee: Mitsubishi Mining & Cement Co., Ltd.
    Inventors: Yoshiharu Ozaki, Mitsushi Wadasako, Toshihiro Kasai, Yoshinori Shinohara
  • Patent number: 4507245
    Abstract: A new improved process of producing a rare earth metal alkoxide is now provided, which comprises reacting a rare earth metal carboxylate with an alkali metal alkoxide in an inert organic solvent under anhydrous conditions, and which can be conducted in a facile way and give the desired rare earth metal alkoxide of a high purity in a high yield.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: March 26, 1985
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Yoshiharu Ozaki, Kimiyoshi Kaneko, Senshu Mitachi