Patents by Inventor Koichi Kamoi

Koichi Kamoi 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: 6592022
    Abstract: Mailing envelopes are made by using standard paper sizes with prescribed folds and application of adhesive. In one form, the envelope is of a horizontal configuration to receive a letter typical in countries like the United States of America and in another configuration, the envelope is more typical of envelopes for receiving a letter in countries like Japan.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: July 15, 2003
    Assignee: Gradco (Japan) Ltd.
    Inventor: Koichi Kamoi
  • Patent number: 5727471
    Abstract: There is provided a plate carrier mechanism A having an endless plate belt 3 hung on between a pair of pulleys 2p and 2q spaced from each other, and a blanket carrier mechanism B having an endless blanket belt 5 hung on between a pair of pulleys 4p and 4q spaced from each other, the blanket carrier mechanism B is adapted to be displaceable to a pressure-contacting position Pp or a separating position Pr to the place carrier mechanism A, also, a speed of an outer surface of the plate belt 3 is made greater than that of the blanket belt 5, and the plate carrier mechanism A is of a driving side and the blanket carrier mechanism B is of a driven side, and the plate carrier mechanism A and the blanket carrier mechanism B are connected to each other through a rotation transmitting gear mechanism 6 having a predetermined play which can absorb a difference of the speed of the outer surface of the plate belt 3 and the speed of the outer surface of the blanket belt 5.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: March 17, 1998
    Assignees: Nagano Japan Radio Co., Ltd., Gradco (Japan) Ltd.
    Inventors: Tomoaki Iwafune, Koichi Kamoi
  • Patent number: 5711219
    Abstract: Slave rollers 5x, 5y and 5z are attached to a co-axis of a treating roller, and releasing cams 8x, 8y and 8z contacting with the slave rollers 5x, 5y and 5z for separating the treating roller from the plate carrier 2 when a protruding portion protruding above the plate carrier 2 passes through the treating roller, so that the treating roller having contacted with the rotating carrier plate 2 is released from the plate carrier 2.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: January 27, 1998
    Assignees: Nagano Japan Radio Co., Ltd., Gradco (Japan) Ltd.
    Inventors: Shigehisa Ohno, Koichi Kamoi
  • Patent number: 5643381
    Abstract: A blanket belt for use in a printing machine is produced through a producing step including a reinforcement member setting step P1 of setting a reinforcement member 3 onto a mold having teeth shape at an outer circumferential surface thereof, a rubber sheet setting step P2 of setting a green rubber sheet made of a rubber material for use in a blanket, on the reinforcement member 3 set onto the mold, a vulcanizing step P3 of forming teeth T . . . for use in a timing belt on an inner surface thereof by vulcanizing an intermediate produced article obtained on the rubber sheet setting step P2, and obtaining an endless timing belt having the reinforcement member 3 at an inside thereof, and a blanket surface working step P4 of working an outer surface of the timing belt on a blanket surface, after vulcanizing.Thereby, both of expansion and contraction of a blanket surface and a slip thereof to the pulleys are prevented effectively.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: July 1, 1997
    Assignees: Nagano Japan Radio Co., Ltd., Gradco (Japan) Ltd.
    Inventors: Tomoaki Iwafune, Koichi Kamoi
  • Patent number: 5564337
    Abstract: There are provided an operating mechanism 5 having an operating portion, for example, freely rotatable roller 4, which is displaced to a setting position Ps of pressure-contacting to the plate belt 2 by a spring member 3 and a releasing position Pr spaced apart from the plate belt 2, a fore clamping mechanism 8 supported in a seasaw manner on widthwise supporting shafts 6 . . . disposed on the plate belt 2, and having clamping portions 7c . . . for clamping a fore portion of the plate S at one end thereof, operated portions 7m . . . pressed by the freely ratable roller 4 at the setting position Ps, at the other end thereof, and fore clamps 7 . . . pressed in a clamping direction by spring members 9 . . . , and a rear clamping mechanism 12 supported in a seasaw manner on a widthwise supporting shaft disposed on the plate belt 2 at a rearward of the fore clamping mechanism 8, and having a clamping portion 11c for clamping a rear portion of the plate S at one end thereof, operated portions 11m . . .
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 15, 1996
    Assignees: Nagano Japan Radio Co., Ltd., Gradco (Japan) Ltd.
    Inventors: Kazumi Uehara, Tomoaki Iwafune, Koichi Kamoi
  • Patent number: 5425998
    Abstract: A paper plate for office offset printing has at least one side of a base paper composed of a water resistant middle layer made primarily of synthetic latex and a hydrophilic surface layer, which is applied to the top of the water resistant middle layer, made primarily of colloidal silica particles 20 nm or less in diameter, a slip agent and an adhesive.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: June 20, 1995
    Assignee: Gradco (Japan) Ltd.
    Inventors: Masami Minakawa, Akiyo Kanbara, Koichi Kamoi
  • Patent number: 5390597
    Abstract: A compact, low-height offset press of simple construction is easy to use, needs no after-use maintenance such as cleaning the ink roller and is designed for fully automatic operation. Plate support 1 and blanket support 10 consist of endless belts. Etching unit 60, dampening unit 70 and inking unit 80 are placed along the periphery of the plate support. An unetched plate is supplied from the plate supply unit and etched automatically for printing. When the press is not in use, anti-drying tank 95 moves up, enclosing the roller(s) in liquid, to prevent any ink on the roller surfaces from drying.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: February 21, 1995
    Assignee: Gradco (Japan) Ltd.
    Inventors: Takao Hashimoto, Hiroshi Sato, Mitsuo Nagaoka, Koichi Kamoi, Mamoru Mizuno
  • Patent number: 4359308
    Abstract: A counterbalance device for operation with the manipulator of a laser knife in which the moment of the knife is maintained in a balanced state over the entire range of movement of the knife so that the movement of the knife is smooth over its entire range and its operability highly increased. A counterbalance device of the invention is coupled to the manipulator at a fulcrum point. The centers of gravity of the manipulator and counterbalance device are in the same vertical plane. The center of gravity of the counterbalance device is moved in parallel with the movement of the center of gravity of the manipulator. In preferred embodiments, the counterbalance device includes arm sections which are geometrically similar to the arm structure of the manipulator device. A rotatable arm of the counterbalance device is coupled through rotatable links to the corresponding rotatable arm of the manipulator so as to maintain dynamical balance.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: November 16, 1982
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Tohru Nakajima, Koichi Kamoi