Patents by Inventor Yoshio Kawajiri

Yoshio Kawajiri 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).

  • Information management system capable of connecting facsimile machines which are incompatible with network systems to network systems
    Patent number: 6590677
    Abstract: The present invention is related to an information management system and device that makes it possible to connect the conventional facsimiles, to a network system such as a local area network (LAN).
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 8, 2003
    Assignee: Ricoh Co., Ltd.
    Inventors: Masahiro Nakamura, Yoshio Kawajiri, Peter E. Hart
  • Method and apparatus for sending secure facsimile transmissions and certified facsimile transmissions
    Patent number: 5692048
    Abstract: A facsimile transmission system with a first facsimile machine that includes at least a scanner for scanning documents inserted into a document feeder and transmission capabilities for sending a fax and with a second facsimile machine that includes at least reception capabilities for receiving the fax and a printer for printing a hard copy of the received fax, if necessary. The facsimile system may include functionality for securing the facsimile transmission. The facsimile system may include functionality to enable the facsimile transmission to be certified.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: November 25, 1997
    Assignees: Ricoh Company, Ltd., Ricoh Corporation
    Inventors: Michael J. Gormish, Gregory J. Wolff, David G. Stork, Peter E. Hart, Yoshio Kawajiri
  • Head carriage for use in a magnetic recording machine
    Patent number: 4549239
    Abstract: A head carriage for use in a contact-type magnetic recording/reproducing system, in particular a floppy disc system, comprises a carriage main body, a magnetic head fixedly mounted on the carriage main body and a resiliently supported arm for carrying thereon either another magnetic head for double-sided operation or a pressure pad for single-sided operation. In one aspect of the present invention, linear coefficients of expansions of various parts of the head carriage are determined so as to maintain a proper alignment between the two magnetic heads which are disposed in opposed relationship. In another aspect of the present invention, there is provided a specifically shaped pressure contact member for supporting a pressure pad to keep a desired contact condition between the magnetic head and a recording medium.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: October 22, 1985
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshio Kawajiri
  • Sheet feeding device for printing apparatus
    Patent number: 4280693
    Abstract: In a sheet feeding device for a printing apparatus for feeding one sheet after another to a printing station, a stopper hook is located slightly posterior to point of contact between a platen and a roller or between two rollers brought into and out of pressing contact with each other, and a sheet fed to the printing station is stopped by the stopper hook and has its position corrected, if it has a skew, while the platen and the roller or the two rollers are out of contact with each other. Thus a sheet free from skew is pressed by the roller against the platen or the roller to enable automatic skewless sheet feeding to be effected.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: July 28, 1981
    Assignee: Ricoh Co., Ltd.
    Inventors: Koh Matsuhisa, Mamoru Takezawa, Yoshio Kawajiri