Patents by Inventor Akira Asaoka

Akira Asaoka 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: 7336917
    Abstract: A film loader for the image forming apparatus has a film formed endlessly and a film frame for holding the film, wherein a guide member for attaching or detaching the film with respect to the film loading portion of the film frame is formed by a packaging member for use in transporting and storing the film.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 26, 2008
    Assignee: Ricoh Printing Systems, Ltd.
    Inventors: Akira Asaoka, Shuho Yokokawa, Isao Nakajima, Akihiko Yamazaki
  • Publication number: 20080044192
    Abstract: According to one embodiment, an image forming apparatus includes an image carrier, a image forming unit, a measurement unit and a controller. The image carrier includes a central region on which a target image as an object of an image forming is formed and a peripheral region placed outward of the central region. The image forming unit forms a reference image on the peripheral region and the central region, before the image forming is started. Also, the image forming unit forms the target image on the central region based on a preset condition and a third reference image on the peripheral region, during the image forming. The measurement unit measures a physical quantity for the reference images.
    Type: Application
    Filed: May 31, 2007
    Publication date: February 21, 2008
    Applicant: RICOH PRINTING SYSTEMS, LTD.
    Inventors: Makoto Yagawara, Hideharu Miki, Isao Nakajima, Akihiko Yamazaki, Akira Asaoka, Yukio Otome, Souichi Nakazawa
  • Patent number: 7308220
    Abstract: A belt unit of an electrophotographic printing apparatus, includes: two rollers for supporting a belt so as to be substantially in parallel with each other; two frames for supporting the rollers and attached to opposite ends of one of the rollers respectively so as to be perpendicular to the rollers; two support members attached to opposite ends of the other roller so as to be perpendicular to the rollers; two elastic members interposed between the two support members and the two frames respectively; and a belt mounting guide provided between the two frames. The belt mounting guide includes a rotating shaft disposed in parallel with the rollers, and an edge portion inclined relative to an axial direction of the rotating shaft.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: December 11, 2007
    Assignee: Ricoh Printing Systems, Ltd.
    Inventors: Akira Asaoka, Isao Nakajima, Akihiko Yamazaki
  • Patent number: 7295794
    Abstract: A film loader for the image forming apparatus has a film formed endlessly and a film frame for holding the film, wherein a guide member for attaching or detaching the film with respect to the film loading portion of the film frame is formed by a packaging member for use in transporting and storing the film.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: November 13, 2007
    Assignee: Ricoh Printing Systems, Ltd.
    Inventors: Akira Asaoka, Shuho Yokokawa, Isao Nakajima, Akihiko Yamazaki
  • Publication number: 20070212086
    Abstract: An image forming apparatus is disclosed that is able to form a full color image with high precision by correcting the adhesion quantity of an image visualizing agent and a position shift of a visible image while continuing to perform a printing process. The image forming apparatus includes an intermediate transfer unit; plural photoconductors; plural charging units; plural exposure units; plural developing units; plural first transferring units; and plural second transferring units. The intermediate transfer unit has a correction pattern image formed in a region outside of a predetermined maximum document region of the intermediate transfer unit in a direction perpendicular to the moving direction. A detector is provided in the intermediate transfer unit for detecting the correction pattern image.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 13, 2007
    Inventors: Makoto YAGAWARA, Hideharu MIKI, Souichi NAKAZAWA, Shinichi AKATSU, Akira ASAOKA, Akihiko YAMAZAKI, Isao NAKAJIMA
  • Publication number: 20060204278
    Abstract: A film loader for the image forming apparatus has a film formed endlessly and a film frame for holding the film, wherein a guide member for attaching or detaching the film with respect to the film loading portion of the film frame is formed by a packaging member for use in transporting and storing the film.
    Type: Application
    Filed: May 10, 2006
    Publication date: September 14, 2006
    Applicant: Ricoh Printing Systems, Ltd.
    Inventors: Akira Asaoka, Shuho Yokokawa, Isao Nakajima, Akihiko Yamazaki
  • Publication number: 20040165909
    Abstract: A belt unit of an electrophotographic printing apparatus, includes: two rollers for supporting a belt so as to be substantially in parallel with each other; two frames for supporting the rollers and attached to opposite ends of one of the rollers respectively so as to be perpendicular to the rollers; two support members attached to opposite ends of the other roller so as to be perpendicular to the rollers; two elastic members interposed between the two support members and the two frames respectively; and a belt mounting guide provided between the two frames. The belt mounting guide includes a rotating shaft disposed in parallel with the rollers, and an edge portion inclined relative to an axial direction of the rotating shaft.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Hitachi Printing Solutions, Ltd.
    Inventors: Akira Asaoka, Isao Nakajima, Akihiko Yamazaki
  • Publication number: 20030231898
    Abstract: A film loader for the image forming apparatus has a film formed endlessly and a film frame for holding the film, wherein a guide member for attaching or detaching the film with respect to the film loading portion of the film frame is formed by a packaging member for use in transporting and storing the film.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 18, 2003
    Applicant: Hitachi Printing Solutions, Ltd.
    Inventors: Akira Asaoka, Shuho Yokokawa, Isao Nakajima, Akihiko Yamazaki