Patents by Inventor Mitsuru Ichikawa

Mitsuru Ichikawa 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: 6072626
    Abstract: A binocular includes first and second swingable bodies respectively accommodating telescope systems. The binocular further includes two drive rings respectively provided to the swingable bodies and an operation knob. A transmission unit is provided to transmit the rotation of the operation knob to the drive rings. The transmission unit includes two pairs of a first gear and a second gear. The first gear and the second gear engage with each other so that a contact point of pitch circles thereof is located on each of the swing axis.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: June 6, 2000
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Mitsuru Ichikawa
  • Patent number: 6020998
    Abstract: A binocular includes two parallel telescope systems two swingable bodies respectively accommodating the telescope systems, a supporting body which swingably supports the swingable bodies so that the swingable bodies are respectively swingable about two parallel swing axes, two drive rings rotatably provided to the swingable bodies, an operation knob provided to the supporting body which, and two rotating bodies respectively linked to the drive rings. Each of the rotating bodies located across a border of the swingable body and the supporting body.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: February 1, 2000
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Mitsuru Ichikawa
  • Patent number: 5973830
    Abstract: A binocular includes first and second rotatable bodies respectively accommodating two telescope systems, which are rotatable about two rotation axes for interpupillary adjustment. The binocular further includes a groove provided to the first rotatable body and a pin provided to the second rotatable body. The pin is in contact with the groove in such a manner that the contact member is slidable with respect to the groove. When one of the rotatable bodies is rotated, the other is also rotated due to the contact of the pin and said groove.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: October 26, 1999
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Mitsuru Ichikawa
  • Patent number: 5746162
    Abstract: A sheet processing apparatus for punching a sheet having a detachable punching unit for accomplishing wide varieties of combinations of punching conditions such as a number of the hole, diameter of the hole, and a position of the hole at a sheet. A sort of the punching unit which is mounted to the apparatus is recognized by a recognition device and one of a sheet conveying speed, a punching speed, and a punch operation timing is controlled by a controller in accordance with a condition predetermined for each sort of the punching unit which is recognized by the recognition device.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: May 5, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Masatoshi Hosoi, Yoshihide Sugiyama, Mitsuru Ichikawa, Norihisa Masamura
  • Patent number: 5524873
    Abstract: A finisher for finishing sheets for use in a copier, printer or similar image forming apparatus having a sorter for sorting sheets on a plurality of bins, and further having a stapler or a punching device. A bin moving member is provided for moving the plurality of bins to predetermined positions in which the bin moving member moves the bins to a positioning relationship such that an interval A between a first bin for accepting the discharged sheets from a discharging member and a third bin located at a position immediately over the first bin, an interval B between the first bin and a second bin located at a position immediately under the first bin, and an interval D between the third bin located at a position immediately over the first bin and a fifth bin located at a position immediately over the third bin are broader than an interval E between other adjacent regular bins.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 11, 1996
    Assignee: Ricoh Elemex Corporation
    Inventors: Masatoshi Hosoi, Tetsuji Watanbe, Yuichi Fujii, Yuji Ueno, Nobuyoshi Seki, Mitsuru Ichikawa
  • Patent number: 5447298
    Abstract: A finisher for binding paper sheets sequentially driven out of an image forming apparatus. A finisher moves along an edge of a stack of sheets and curves around a corner. A pair of individualy operated gripper fingers grabs the stack of sheets and moves the stack into position for finishing.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: September 5, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuji Watanabe, Nobuyoshi Seki, Yuichi Fujii, Masatoshi Hosoi, Mitsuru Ichikawa, Yuji Ueno, Yoshiaki Ushirogata
  • Patent number: 5056774
    Abstract: A finisher for use with a copier, printer or similar image forming apparatus for stapling or otherwise finishing paper sheets sequentially driven out of the apparatus. The paper sheets entering the finisher one after another are collected on a tray. A paper sorting mechanism moves the tray in a reciprocating motion in a horizontal plane in a direction perpendicular to an intended direction of paper discharge onto the tray. The paper sorting mechanism has a paper pressing member movable in a reciprocating motion in interlocked relation to the tray, a paper positioning member for urging the paper sheet discharged onto the tray to a predetermined position, a drive source for causing the tray into a reciprocating motion, and a drive source for driving the tray in the vertical direction such that the tray receives paper sheets at an optimal level. A height sensor is associated with the paper pressing member for determining that the paper sheets sequentially stacked on the tray has reached a predetermined height.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: October 15, 1991
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazunori Kubota, Hideo Yamazaki, Yuichi Fujii, Mitsuru Ichikawa