Patents by Inventor Masaaki Matsuzaka

Masaaki Matsuzaka 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: 11947305
    Abstract: An apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion and a replenishment port, a transfer portion configured to transfer a developer image on an image bearing member onto a recording material, a supporting tray including a supporting surface configured to support the recording material thereon, and a discharge portion configured to discharge the recording material, onto which the developer image has been transferred, on the supporting surface, wherein the supporting surface has an opening portion opening such that the replenishment port is exposed through the supporting surface, and wherein an opening/closing member configured to be movable between a closed position where the opening/closing member covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed is provided.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: April 2, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomio Noguchi, Masaaki Sato, Kenji Matsuzaka, Koji Fujinaka, Takao Sameshima, Akitoshi Toyota, Yuichiro Inaba, Kenichi Iida
  • Patent number: 5012105
    Abstract: A multiple-imaging charged particle-beam exposure system includes a charged particle beam source, and a screen lens having lens apertures therein. A charged particle beam is emitted from the charged particle beam source. A beam emerging from each of the lens apertures of the screen lens is irradiated on an object to be exposed, to effect exposure on the object. An image forming electrode is interposed between the screen lens and the object for focusing beams emerging from the screen lens to form images at the image forming electrode. An acceleration/deceleration correcting lens is interposed between the image forming electrode and the object for limiting divergency of the images formed at the image forming electrode. A bias voltage controller applies a bias voltage relative to a potential at the image forming electrode to a surface of the object. Alternatively, a beam limiting aperture plate having beam limiting apertures therein is interposed between the charged particle beam source and the screen lens.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: April 30, 1991
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Masaaki Ando, Masaaki Matsuzaka, Masahiro Saita
  • Patent number: 4807296
    Abstract: An automatic pattern original reading apparatus is disclosed in which perforation position coordinate data of a pattern original indicating a perforation position of a printed substrate is stored beforehand, and a hole diameter indication sheet having a colored indication which discriminates perforation diameter and which is located at a position corresponding to the perforation position of the pattern original is placed on a table. The table and an optical system for optically reading reflected light from the color indication through color filters are moved relatively to each other by position control circuits to the perforation position. The color detection output from the optical system is discriminated with respect to color by a color discrimination circuit, and the color discrimination output is stored in a memory as hole diameter information in a corresponding relationship with the perforation position coordinate data.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: February 21, 1989
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Masaaki Ando, Masaaki Matsuzaka
  • Patent number: 4659938
    Abstract: Hole diameter information is represented by color information. After detecting the color information, the detected color information is converted and generated into the hole diameter information. In this manner, a plurality of kinds of hole diameter information can be processed simultaneously, and efficiently with error reduction. The invention disclosed includes a pattern figure (2a) having a plurality of marks corresponding to holing positions of a printed board or the like and indicated by identification colors (3) corresponding to hole diameters of the holing positions. A detecting device 4 for generating detection signals corrsponding to the identification colors (2) of the marks in the pattern figure (2a), and hole diameter information generating means (6) for generating information representing the hole diameters by deciding the identification colors.
    Type: Grant
    Filed: September 25, 1984
    Date of Patent: April 21, 1987
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Yoshiyuki Aoyama, Shuitsu Funabashi, Masaaki Matsuzaka