Patents by Inventor Kazuhisa Umezawa

Kazuhisa Umezawa 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: 8636139
    Abstract: A conveyor has drive and driven shafts mounted to undergo rotation, a transmitting member transmitting a rotational drive of the drive shaft to the driven shaft in synchronization relative one another, an elastic conveying member looped around the drive and driven shafts for conveying an object, and a guide portion arranged between the drive and driven shafts. The guide portion has rotators, receiving portions receiving respective ones of the rotators, openings communicating with through-holes of the conveying member, communication portions communicating with the openings and positioned so that each of the rotators is arranged between respective adjacent pairs of the communication portions, and connection members communicating with the openings via the communication portions. The connection members are configured for connection to a suction device for drawing air from the openings through the respective communication portions to draw by suction the conveyance object toward the conveying member.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 28, 2014
    Assignee: Seiko I Infotech Inc.
    Inventors: Kazuhisa Umezawa, Takao Arai, Kazuhiro Sei
  • Publication number: 20110139581
    Abstract: In a conveyor (1) including an elastic conveying member (4), which is looped around at least a first rotation shaft (2) and a second rotation shaft (3), and rotates endlessly through drive of the first rotation shaft, the conveying device further includes: transmitting means (5) for transmitting the drive of the first rotation shaft (2) to the second rotation shaft (3) so that the first rotation shaft (2) and the second rotation shaft (3) are synchronized with each other. Provide are a conveyor and a conveying device which are capable of allowing a movement amount of the first rotation shaft and a movement amount of the conveyance object to be accurately followed.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 16, 2011
    Inventors: Kazuhisa Umezawa, Takao Arai, Kazuhiro Sei
  • Patent number: 5025270
    Abstract: An ink jet recording device composed of a plurality of ink jet heads reciprocally acting in a direction perpendicular to a paper sheet feeding direction, and a plurality of ink supplying tubes connected between the ink set heads and an ink supplying source to supply ink to the recording heads. The ink supplying tubes are bound together in a plane and arranged to be parallel to the movement direction of the ink jet heads so that the radius of curvature of the bending part of the ink supplying tubes can be diminished and sliding of the ink supplying tubes relative to each other is avoided.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: June 18, 1991
    Assignee: Seiko Instruments, Inc.
    Inventor: Kazuhisa Umezawa