Patents Assigned to Sigma, Incorporated
  • Patent number: 5713572
    Abstract: A pusher game apparatus provides at least one jackpot detecting section which detects a disk dropped from a guiding means. The stroke of reciprocation of the pusher is changed according to whether or not the disk is detected by the jackpot detecting section, thereby varying the maximum number of medals which can be acquired. Accordingly, the pusher game apparatus can provide the game with unexpectedness, giving much stronger impact on players.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: February 3, 1998
    Assignee: Sigma, Incorporated
    Inventor: Takashi Hagiwara
  • Patent number: 5618233
    Abstract: A running body having an animal model with four legs such as a horse model for a horse racing game, and a racing game apparatus using a plurality of the running bodies, are disclosed. Each running body comprises a movable body which can be transferred along a track formed on a table, and an animal model having four legs, of which the fore and hind legs can be swung back and forth accompanying the movement of the movable body and which can move on or above the track. The animal model comprises: a pair of upper limbs of fore legs, each of which conducts a predetermined swinging back and forth on a shaft attached to a barrel of the animal model; a pair of lower limbs of fore legs, each of which conducts a predetermined swinging back and forth on a shaft attached to a lower portion of the upper limb, by the swinging of the pair of upper limbs; and a swinging mechanism for swinging the pair of upper limbs by changing the transfer movement of the movable body to a swinging movement.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: April 8, 1997
    Assignee: Sigma, Incorporated
    Inventors: Kouichi Iimura, Yu Haijima
  • Patent number: 5591081
    Abstract: A card game amusement device simulates a card game in which a card the number or the suit of which matches with a number or a suit of a card displayed on a second screen region of a graphic screen is selected from cards displayed on a first screen region, and in which the card is moved onto the card displayed on the second screen region, and in which selecting and moving a card is repeated until all cards are moved to the second screen region or until a card the number or the suit of which matches with the number or the suit of the card displayed on the second screen region is not present on the first screen region.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: January 7, 1997
    Assignee: Sigma, Incorporated
    Inventor: Hirokazu Suzuki
  • Patent number: 5423539
    Abstract: This invention relates a game machine in which a combination of characters stopped along a winning line is judged based on a winning table showing winning combinations of characters to determine the presence of a win and a payment of coins. In this game machine, a substitutable character can be used as another character, and when its substitution makes a combination of characters a winning combination, a payment of coins for the combination is increased or decreased to determine a new payment of coins.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: June 13, 1995
    Assignee: Sigma, Incorporated
    Inventor: Yuji Nagao
  • Patent number: 5382021
    Abstract: A plurality of carriers are towed by a traction car moving along a guide portion provided under a travel road surface plate through flexible pulling members. Mobile models on the travel road surface plate are attracted to the towed carriers by magnets. Hence, the mobile models on the travel road surface plate travel in accordance with the movement of the traction car. Furthermore, when a plurality of winch units provided to the traction car are separately operated to take up and rewind the pulling members, the plurality of mobile models travel at different speeds.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: January 17, 1995
    Assignee: Sigma, Incorporated
    Inventors: Hiroyuki Tatesaka, Takanao Moritsu
  • Patent number: 5209479
    Abstract: The present invention provides a slot machine for determining winning or losing by selecting predetermined symbols from symbol trains arranged on X reels, in accordance with a random number, in which the X reels have symbol trains of different numbers of symbols arranged thereon.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 11, 1993
    Assignee: Sigma, Incorporated
    Inventors: Yuji Nagao, Yoshihiro Kinoshita
  • Patent number: 5050881
    Abstract: This invention relates to a slot machine which comprises random number generating unit and X reels each having a plurality of symbols. All the combinations of the symbols among the reels made when one symbol of each reel is selected are identified by respective numbers, and one random number is generated by the random number generating unit, so that a combination of the symbols bearing an identification number corresponding to the random number is selected.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: September 24, 1991
    Assignee: Sigma, Incorporated
    Inventor: Yuji Nagao
  • Patent number: 4874172
    Abstract: The reel tape fixing device according to this invention comprises reel tape fixing means for securing the reel tape wound on the reel frame, slide means having a flat surface which slides on a side surface of the circular reel frame, radial means for retaining a position in the radial direction, projected from the slide means, and engaged in a groove formed in the reel frame in the circumferential direction thereof, guide means for guiding the radially positioning means into the groove, projected in parallel with the slide means from a position opposed to the radial means, and circumferential means for retaining a position in the circumferential direction in mesh with a plurality of detents formed partially on the periphery of the reel frame on the opposite side of the groove.
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: October 17, 1989
    Assignee: Sigma, Incorporated
    Inventor: Kikuo Nakamura