Inventor
OKADA KAZUO
JP296 patents
⚠️ This page may combine multiple inventors who share the name “OKADA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIVERSAL KK
24 patentsUS5178390AJan 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
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
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
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
US4492379AJan 8, 1985
Reel type slot machine
UNIVERSAL KK137 citations96
ARUZE CORP
9 patentsUS7159865B2Jan 9, 2007
Gaming apparatus
ARUZE CORP153 citations99
US6937298B2Aug 30, 2005
Gaming machine having a protective member covering drive unit and at least a portion of the light emission means
ARUZE CORP171 citations99
US6790142B2Sep 14, 2004
Advertisement distribution system and server
ARUZE CORP181 citations99
US7479061B2Jan 20, 2009
Gaming machine
ARUZE CORP55 citations98
US7220181B2May 22, 2007
Gaming machine having transparent LCD in front of variable display device, the LCD having a light-guiding plate and a reflective plate
ARUZE CORP150 citations98
US7097560B2Aug 29, 2006
Gaming apparatus with a variable display unit and concealing unit to temporarily conceal the variable display unit
ARUZE CORP141 citations98
US6287194B1Sep 11, 2001
Gaming machine
ARUZE CORP280 citations98
US7520812B2Apr 21, 2009
Gaming machine
ARUZE CORP27 citations93
US7485039B2Feb 3, 2009
Gaming machine
ARUZE CORP39 citations93
UNIVERSAL ENTERTAINMENT CORP
7 patentsUS10839648B2Nov 17, 2020
Gaming machine
UNIVERSAL ENTERTAINMENT CORP28 citations94
US10242533B2Mar 26, 2019
Gaming machine
UNIVERSAL ENTERTAINMENT CORP30 citations94
US8021225B2Sep 20, 2011
Gaming machine
UNIVERSAL ENTERTAINMENT CORP41 citations93
US7887410B2Feb 15, 2011
Gaming machine
UNIVERSAL ENTERTAINMENT CORP18 citations93
US7780515B2Aug 24, 2010
Gaming machine
UNIVERSAL ENTERTAINMENT CORP25 citations93
US7695364B2Apr 13, 2010
Gaming machine
UNIVERSAL ENTERTAINMENT CORP32 citations93
US7690998B2Apr 6, 2010
Gaming machine
UNIVERSAL ENTERTAINMENT CORP24 citations93
ARUZE CO LTD
2 patentsUS6695697B1Feb 24, 2004
Game device and medium memorizing a game program and readable by a computer for support players′ technical intervention without changing fundemental specification of the game device
ARUZE CO LTD154 citations99
US7465232B2Dec 16, 2008
Game server, game machine, and game control method
ARUZE CO LTD25 citations93
UNIVERSAL SALES CO LTD
2 patentsOKADA KAZUO
2 patentsNIPPON TELEGRAPH & TELEPHONE
1 patentMATSUSHITA REFRIGERATION
1 patentHONDA MOTOR CO LTD
1 patentUNIVERSAL COMPANY LTD
1 patentShowing the top 50 of 296 patents by PatentIndex Score.