Patents by Inventor Shiro Takamizawa

Shiro Takamizawa 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: 5295002
    Abstract: An image communication device having a lower and an upper chassis, the lower chassis having a plurality of rollers for transporting original documents and a guide plate for guiding them, the upper chassis being located above the lower chassis and having a plurality of rollers for transporting recording paper. The lower chassis has a pair of side plates whose top edges contain a plurality of open-ended recesses. Inside the recesses are bearings that rotatably support the document transporting rollers. The guide plate has projections that press the bearings against the recess bottoms. Attaching the guide plate to the lower chassis causes the projections of the former to fix the bearings concurrently. The bearings and guide plate are preferably made up of conductive materials. The rollers are connected to ground via the bearings and guide plate.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: March 15, 1994
    Assignee: Matsushita Graphic Communication Systems, Inc.
    Inventors: Yuji Ishii, Toshihiro Kumano, Shiro Takamizawa, Hiroyuki Yamada, Masanori Sato
  • Patent number: 5206745
    Abstract: An image reading device comprising a device body and an image sensor unit located near the bottom of the body and facing the path through which original documents are transported. The image sensor unit is retained by a retaining member rotatably mounted on a rotary fulcrum shaft located near the bottom of the body. Turning the retaining member around the shaft causes the image sensor unit to extend out of the device and be exposed to perform maintenance thereon.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: April 27, 1993
    Assignee: Matsushita Graphic Communication Systems, Inc.
    Inventors: Hiroyuki Yamada, Toshihiro Kumano, Yuji Ishii, Shiro Takamizawa, Masanori Sato
  • Patent number: 5102115
    Abstract: An image reading device having a feed roller and a document-separating member for separating and feeding one document at a time from a stack of documents on a hopper, and an image sensor for reading each document being transported through a suitable document transport path inside the device. The document transport path is inclined downward for a short distance immediately downstream of the feed roller and the document-separating member, then is bent in a near-horizontal direction, stretching substantially straight. This structure reduces the overall height of the device. A rotatable pushing member for pushing the document-separating member against the feed roller has a document guide surface which is located downstream of the document-separating member and which protrudes beyond the putative extension of the document contact plane at the end of the document-separating member, the pushing member thereby constituting a bend of the path.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: April 7, 1992
    Assignee: Matsushita Graphic Communication Systems, Inc.
    Inventors: Shiro Takamizawa, Toshihiro Kumano, Yuji Ishii, Kiroyuki Yamada, Masanori Sato