Patents by Inventor Kazuo Sunou

Kazuo Sunou 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).

  • Image forming apparatus
    Patent number: 7010242
    Abstract: An image forming apparatus includes: a first image forming unit having a first printing section for forming a first image on the paper; a second image forming unit having a second printing section for forming a second image on the paper; and a paper conveying unit for conveying the paper from the first image forming unit to the second image forming unit. Accordingly, two kinds of image can be formed employing one image forming apparatus. The first image and the second image may be formed using the same recording material (toner) or different recording materials (toners).
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: March 7, 2006
    Assignee: Ricoh Printing Systems, Inc.
    Inventors: Takashi Suzuki, Masayuki Ainoya, Junji Shirakawa, Yoshitaka Fujinuma, Koji Kato, Kazuo Sunou
  • Image forming apparatus
    Publication number: 20040028436
    Abstract: An image forming apparatus includes: a first image forming unit having a first printing section for forming a first image on the paper; a second image forming unit having a second printing section for forming a second image on the paper; and a paper conveying unit for conveying the paper from the first image forming unit to the second image forming unit. Accordingly, two kinds of image can be formed employing one image forming apparatus. The first image and the second image may be formed using the same recording material (toner) or different recording materials (toners).
    Type: Application
    Filed: June 25, 2003
    Publication date: February 12, 2004
    Applicant: Hitachi Printing Solutions, Ltd.
    Inventors: Takashi Suzuki, Masayuki Ainoya, Junji Shirakawa, Yoshitaka Fujinuma, Koji Kato, Kazuo Sunou
  • Sheet accommodating device
    Patent number: 6254086
    Abstract: A sheet accommodating device comprises a first pinion (39a) rotatably disposed at a center of a table; second, third, fourth, and fifth pinions (39) which are rotatably disposed on the both sides of the table; a first regulating member (34) which has rack portions (36, 38) that can be engaged with the first pinion, second pinion and fourth pinion; a second regulating member (35) which has rack portions (37, 38) that can be engaged with the first pinion, third pinion and fifth pinion; and lock means (33) for positioning any one of the first and second regulating members.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: July 3, 2001
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Kazuo Sunou, Junji Shirakawa, Takayuki Muneyasu
  • Image forming apparatus
    Patent number: 6137968
    Abstract: There are disposed optical sensors (S1, S2, S3,S4, S5, and S6) outside sheet trays (1, 2, 3). The optical axes of the optical sensors are respectively set in such a manner that they are parallel to their associated up-down tables (1a, 2a, and 3a) and pass upwardly of contact positions (A, B and C) between sheets (P) and sheet supply rollers (20, 21, and 22).
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 24, 2000
    Assignee: Hitachi Koki Company Limited
    Inventors: Kazuo Sunou, Junji Shirakawa, Takayuki Muneyasu