Assignee
SIGMA INC
JP·13 granted patents·1 pending application·1,911 citations·filing 1988–2014
Top patents by PatentIndex Score
14 records- 0198US5580055AAmusement device and selectively enhanced display for the sameSIGMA INC·Filed 1994·Granted Dec 3, 1996·403 cites·9 claims
- 0294US5423539ASlot machine with payout modifying symbolsSIGMA INC·Filed 1993·Granted Jun 13, 1995·596 cites·23 claims
- 0390US5209479AClot machineSIGMA INC·Filed 1992·Granted May 11, 1993·339 cites·8 claims
- 0489US5192076AKeno game playing apparatusSIGMA INC·Filed 1991·Granted Mar 9, 1993·154 cites·2 claims
- 0581US5591081ACard game amusement deviceSIGMA INC·Filed 1994·Granted Jan 7, 1997·57 cites·20 claims
- 0680US5050881ASlot machineSIGMA INC·Filed 1990·Granted Sep 24, 1991·134 cites·16 claims
- 0775US6012981AGame machine for single playerSIGMA INC·Filed 1997·Granted Jan 11, 2000·134 cites·10 claims
- 0862US5713572APusher game apparatusSIGMA INC·Filed 1997·Granted Feb 3, 1998·33 cites·6 claims
- 0953US5507490AGame apparatusSIGMA INC·Filed 1995·Granted Apr 16, 1996·37 cites·18 claims
- 1049US2016224005A1Tool path generation apparatus, tool path generation method, program for providing function as tool path generation apparatus, and storage medium having the program stored thereinSIGMA INC·Filed 2014·Application pending·0 cites
- 1136US4874172AReel tare fixing device and reelSIGMA INC·Filed 1988·Granted Oct 17, 1989·8 cites·21 claims
- 1230US4928964AReel driving device for use in the slot machineSIGMA INC·Filed 1988·Granted May 29, 1990·4 cites·17 claims
- 1323US5618233ARunning body and racing game apparatus using the sameSIGMA INC·Filed 1995·Granted Apr 8, 1997·5 cites·28 claims
- 1422US5382021AHorse racing game having rotating arm and tethered membersSIGMA INC·Filed 1994·Granted Jan 17, 1995·7 cites·13 claims
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