Source: http://www.google.com/patents/US6923441?dq=6,263,507
Timestamp: 2017-08-23 22:39:36
Document Index: 501170720

Matched Legal Cases: ['arts 21', 'art 21', 'art 23', 'art 21', 'art 22', 'art 22', 'art 23', 'art 22', 'art 21', 'art 23', 'art 21', 'art 22', 'arts 21']

Patent US6923441 - Symbol display device for game machine - Google Patents
Transparent blank symbols are provided in each of first, second and third display plates. The player wins if the same symbols of the first to third display plates are arranged in line on any of winning lines when the first to third display plates stop rotating. When the blank symbols of the first to...http://www.google.com/patents/US6923441?utm_source=gb-gplus-sharePatent US6923441 - Symbol display device for game machine
Publication number US6923441 B2
Application number US 10/618,745
Also published as US20040155399
Publication number 10618745, 618745, US 6923441 B2, US 6923441B2, US-B2-6923441, US6923441 B2, US6923441B2
Original Assignee Dragon Co. Ltd.
Patent Citations (11), Referenced by (51), Classifications (7), Legal Events (4)
US 6923441 B2
plural main display units, each of the main display units having a display part with at least one symbol area, in which a symbol is provided, and at least one light-transmissive area in a front side, said main display units being arranged so as to expose the display parts;
a sub display unit, located behind the main display units, so that an axis of rotation of the sub display unit is orthogonal to axes of rotation of said main display units, for displaying symbols in motion and/or a static symbol behind said at least one light-transmissive area; and
a winning judging section to judge the win or the loss in accordance with the combination of the displayed symbols of the main display units, the displayed symbol of the sub display unit or the combination of the displayed symbols of the main and sub display units.
2. The symbol display device according to claim 1, wherein the display part is composed of at least one symbol area and at least one transparent non-symbol area;
wherein the light-transmissive area is the non-symbol area, a transparent area inside the symbol, or a transparent area outside the symbol in the symbol area.
3. The symbol display device according to claim 1, wherein the main display unit has at least one transparent part inside or outside of the display part.
plural display plates arranged concentrically, each of the display plates having a display part with at least one symbol area, in which a symbol is provided, and at least one first transparent area, the display parts being ring-shaped with different diameters;
a sub display unit, located behind the display plates, for displaying symbols in motion and/or a static symbol behind said at least one first transparent area; and
a winning judging section to judge the win or the loss in accordance with the combination of the displayed symbols of the display plates, the displayed symbol of the sub display unit or the combination of the displayed symbols of the display plate and the sub display unit,
wherein said sub display unit has an axis of rotation perpendicular to an axis of rotation of said plural plates.
10. The symbol display device according to claim 9, wherein each of the display plates has at least one second transparent area inside or outside of the display part.
plural main display units rotating about a first axis, each of the main display units having a display part with at least one symbol area, in which a symbol is provided, and at least one light-transmissive area in a front side, said main display units being arranged so as to expose the display parts;
a sub display unit, rotating about a second axis different from said first axis and located behind the main display units, for displaying symbols in motion and/or a static symbol behind said at least one light-transmissive area; and
a winning judging section to judge the win or the loss in accordance with the displayed symbol of the sub display unit or the combination of the displayed symbols of the main and sub display units.
16. The symbol display device according to claim 15, wherein the display part is composed of at least one symbol area and at least one transparent non-symbol area;
17. The symbol display device according to claim 15, wherein each of the main display units has at least one transparent part inside or outside of the display part.
As shown in from FIGS. 3, 4 and 5, each of the first, second and third display plates 21, 22 and 23 are respectively composed of transparent circular plate having the same diameter. A first, second and third display parts 21 a, 22 a and 23 a are provided in the first, second and third display plates 21, 22 and 23, respectively. The first display part 21 a in the first display plate 21 is the smallest while the third display part 23 a in the third display plate 23 is the largest. The outer diameter D1 of the first display part 21 a has the same length as the inner diameter D2 of the second display part 22 a, while the outer diameter D3 of the second display part 22 a has the same length as the inner diameter D4 of the third display part 23 a.
The second display plate 22 is disposed in front of the third display plate 23, and the first display plate 21 is disposed in front of the second display plate 22. The third display plate 23 is disposed in front of the display driver 25. The first, second and third display plates 21, 22 and 23 are concentrically attached to the display driver 25. Accordingly, the display part 22 a of the second display plate 22 is observable through the transparent part 21 b of the first display plate 21, and the display part 23 a of the third display plate 23 is observable through the transparent part 21 b of the first display plate 21 and the transparent part 22 b of the second display plate 22. Thereby, the first, second and third display parts 21 a, 22 a and 23 a are disposed concentrically and adjacent to each other (see FIG. 10). The first, second and third display plates 21, 22 and 23 constitute main display means to perform a first winning display.
JP2000116843A Title not available
JPH0722301A Title not available
JPH0817846B2 Title not available
JPH06327807A Title not available
US8425316 * Aug 3, 2010 Apr 23, 2013 Igt Methods and systems for improving play of a bonus game on a gaming machine and improving security within a gaming establishment
US20120034975 * Aug 3, 2010 Feb 9, 2012 Igt Methods and systems for improving play of a bonus game on a gaming machine and improving security within a gaming establishment
International Classification A63F5/04, G07F17/34, A63F7/02
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INOUE, HARUO;REEL/FRAME:014283/0255