Assignee
UNIVERSAL KK
JP61 patents
Top patents by PatentIndex Score
US5178390AJan 12, 1993
Game machine
UNIVERSAL KK919 citations99
US5152529AOct 6, 1992
Game machine
UNIVERSAL KK757 citations99
US5127651AJul 7, 1992
Slot machine
UNIVERSAL KK273 citations99
US5083785AJan 28, 1992
Win control method and apparatus for game machines
UNIVERSAL KK217 citations99
US5074559ADec 24, 1991
Slot machine
UNIVERSAL KK242 citations99
US5024439AJun 18, 1991
Slot machine
UNIVERSAL KK155 citations99
US4753625AJun 28, 1988
Coin pay-out apparatus
UNIVERSAL KK257 citations99
US4721307AJan 26, 1988
Slot machine
UNIVERSAL KK283 citations99
US4718672AJan 12, 1988
Slot machine
UNIVERSAL KK412 citations99
US4679789AJul 14, 1987
Video game apparatus with automatic skill level adjustment
UNIVERSAL KK178 citations99
US4657256AApr 14, 1987
Slot machine with win/loss biasing means
UNIVERSAL KK227 citations99
US4618150AOct 21, 1986
Game machine with selective stop means for moving display
UNIVERSAL KK371 citations99
US4573681AMar 4, 1986
Slot machine with random number generation
UNIVERSAL KK384 citations99
US4556140ADec 3, 1985
Method and apparatus for discriminating coins or bank notes
UNIVERSAL KK294 citations99
US4508345AApr 2, 1985
Slot machine with player-friendly bonus game
UNIVERSAL KK167 citations99
US4772023ASep 20, 1988
Slot machine
UNIVERSAL KK145 citations98
US4669731AJun 2, 1987
Slot machine which pays out upon predetermined number of consecutive lost games
UNIVERSAL KK824 citations98
US5271628ADec 21, 1993
Crane game machine
UNIVERSAL KK104 citations96
US5018737AMay 28, 1991
Slot machine
UNIVERSAL KK64 citations96
US5010995AApr 30, 1991
Slot machine
UNIVERSAL KK81 citations96
US4993713AFeb 19, 1991
Game machine
UNIVERSAL KK66 citations96
US4889339ADec 26, 1989
Slot machine
UNIVERSAL KK75 citations96
US4773647ASep 27, 1988
Slot machine with stop switch enablement after attainment of minimum reel speed
UNIVERSAL KK97 citations96
US4752069AJun 21, 1988
Video game which instructs the user how to play
UNIVERSAL KK76 citations96
US4700948AOct 20, 1987
Slot machine with playing card symbols
UNIVERSAL KK120 citations96
US4657247AApr 14, 1987
Video game apparatus with automatically adjusting timing window
UNIVERSAL KK78 citations96
US4634126AJan 6, 1987
Device for converting the amount of a mechanical displacement into electrical signal
UNIVERSAL KK80 citations96
US4492379AJan 8, 1985
Reel type slot machine
UNIVERSAL KK137 citations96
US4902263AFeb 20, 1990
Coin lifting device
UNIVERSAL KK62 citations95
US4522399AJun 11, 1985
Device for generating impact sound for slot machine
UNIVERSAL KK73 citations95
US5467856ANov 21, 1995
Gaming machine and method of detecting fraud in the same
UNIVERSAL KK25 citations93
US5355988AOct 18, 1994
Coin supply device for coin-operated gaming machine
UNIVERSAL KK60 citations93
US5031911AJul 16, 1991
Ball-shooting game machine
UNIVERSAL KK26 citations93
US4821863AApr 18, 1989
Token feed apparatus for slot machines
UNIVERSAL KK30 citations93
US4822318AApr 18, 1989
Coin dispenser
UNIVERSAL KK24 citations93
US4687981AAug 18, 1987
Stepping motor
UNIVERSAL KK44 citations93
US4534560AAug 13, 1985
Slot machine
UNIVERSAL KK29 citations93
US4964638AOct 23, 1990
Control apparatus for game machines
UNIVERSAL KK512 citations92
US4912389AMar 27, 1990
Rotary position detector for stepping motor
UNIVERSAL KK61 citations92
US4826169AMay 2, 1989
Slot machine with a marker symbol
UNIVERSAL KK252 citations92
US4810230AMar 7, 1989
Coin dispenser
UNIVERSAL KK43 citations90
US4765078AAug 23, 1988
Reel assembly for slot machines
UNIVERSAL KK21 citations82
US4741532AMay 3, 1988
Reel drive device for slot machine
UNIVERSAL KK20 citations82
US4621815ANov 11, 1986
Reel assembly for slot machines
UNIVERSAL KK21 citations82
US4367876AJan 11, 1983
Score display apparatus for pinball game machines and display method therefor
UNIVERSAL KK41 citations81
US4941840AJul 17, 1990
Circuit board mounting apparatus
UNIVERSAL KK18 citations74
US4715604ADec 29, 1987
Slot machine
UNIVERSAL KK15 citations74
US4524636AJun 25, 1985
Slot machine handle locking device
UNIVERSAL KK15 citations73
US4637611AJan 20, 1987
Slot machine with reel position detector
UNIVERSAL KK16 citations72
US4541444ASep 17, 1985
Device for detecting the amount of coins in hopper device
UNIVERSAL KK18 citations72
Showing the top 50 of 61 patents by PatentIndex Score.