Patents by Inventor Shigenori Matsumoto

Shigenori Matsumoto 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).

  • Method of machining a brake caliper
    Patent number: 4790221
    Abstract: A caliper machining apparatus for machining a caliper for a disc brake is disclosed which comprises: a cutter for cutting the caliper, a facing mechanism for positioning and facing the cutter relative to the caliper. The facing mechanism includes a hollow rotary spindle, a facing head fixed to the rotary spindle, a slider movable only in a diametric direction of the facing head, and slidingly moved in eccentric relation with a rotary center of the rotary spindle and a facing shaft passing through the rotary spindle. The facing shaft is allowed to rotate with the rotary spindle but to be displaceable in an axial direction relative to the rotary spindle. The rotary spindle is rotated by a main motor. The facing shaft is moved in the axial direction by the rotation of a facing motor.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: December 13, 1988
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Yukio Iwata, Shigenori Matsumoto
  • Caliper machining apparatus having a caliper holder
    Patent number: 4773292
    Abstract: A caliper machining apparatus for machining a caliper for a disc brake is disclosed which comprises: a cutter for cutting the caliper, a facing mechanism for positioning and facing the cutter relative to the caliper, and a caliper holding jig. The jig supports the caliper at several surfaces for machining by the cutter. The facing mechanism includes a hollow rotary spindle, a facing head fixed to the rotary spindle, a slider movable only in a diametric direction of the facing head, and slidingly moved in eccentric relation with a rotary center of the rotary spindle and a facing shaft passing through the rotary spindle. The facing shaft is allowed to rotate with the rotary spindle but to be displaceable in an axial direction relative to the rotary spindle. The rotary spindle is rotated by a main motor. The facing shaft is moved in the axial direction by the rotation of a facing motor.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: September 27, 1988
    Assignee: Akebono Brake Industry
    Inventors: Yukio Iwata, Shigenori Matsumoto
  • Caliper machining apparatus and method
    Patent number: 4773290
    Abstract: A caliper machining apparatus for machining a caliper for a disc brake is disclosed which comprises: a cutter for cutting the caliper, a facing mechanism for positioning and facing the cutter relative to the caliper. The facing mechanism includes a hollow rotary spindle, a facing head fixed to the rotary spindle, a slider movable only in a diametric direction of the facing head, and slidingly moved in eccentric relation with a rotary center of the rotary spindle and a facing shaft passing through the rotary spindle. The facing shaft is allowed to rotate with the rotary spindle but to be displaceable in an axial direction relative to the rotary spindle. The rotary spindle is rotated by a main motor. The facing shaft is moved in the axial direction by the rotation of a facing motor.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: September 27, 1988
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Yukio Iwata, Shigenori Matsumoto
  • Solid state imaging apparatus
    Patent number: 4630091
    Abstract: Photoelectric transducing elements are formed in a first impurity-doped region (14), and signal charge reading-out circuits (2, 3) are formed in a second impurity-doped region which is deeper than the first impurity-doped region, so that fixed pattern noise is drastically reduced, improving picture quality.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: December 16, 1986
    Assignees: Matsushita Electronics Corporation, Matsushita Electric Industrial Co., Ltd.
    Inventors: Takao Kuroda, Shigenori Matsumoto, Kenju Horii, Takahiro Yamada
  • Solid state image sensor exhibiting reduced image smearing effects
    Patent number: 4498013
    Abstract: The invention provides a solid state image pickup device having a plurality of photoelectric transducers and a vertical transfer CCD (charge coupled device) unit. A concentration of an impurity of a semiconductor substrate region surrounding each of the vertical transfer CCD in the vicinity of each of the photoelectric transducers is higher than that below each of the photoelectric transducers.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: February 5, 1985
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takao Kuroda, Kenju Horii, Shigenori Matsumoto