Inventor · disambiguated record
Kazuo Okada
Also filed as: OKADA KAZUO
296 granted patents·284 pending applications·9,783 citations·filing 1971–2023
99Inventor score
Files withARUZE GAMING AMERICA INC205ARUZE CORP110OKADA KAZUO77UNIVERSAL ENTERTAINMENT CORP49UNIVERSAL KK35
Top patents by PatentIndex Score
580 records- 0199US4556140AMethod and apparatus for discriminating coins or bank notesUNIVERSAL KK·Filed 1983·Granted Dec 3, 1985·294 cites·13 claims
- 0298US10242533B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2016·Granted Mar 26, 2019·30 cites·2 claims
- 0398US6937298B2Gaming machine having a protective member covering drive unit and at least a portion of the light emission meansARUZE CORP·Filed 2003·Granted Aug 30, 2005·171 cites·4 claims
- 0498US5178390AGame machineUNIVERSAL KK·Filed 1992·Granted Jan 12, 1993·919 cites·15 claims
- 0598US4753625ACoin pay-out apparatusUNIVERSAL KK·Filed 1986·Granted Jun 28, 1988·257 cites·3 claims
- 0697US10839648B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2019·Granted Nov 17, 2020·28 cites·6 claims
- 0797US5152529AGame machineUNIVERSAL KK·Filed 1990·Granted Oct 6, 1992·757 cites·15 claims
- 0897US4573681ASlot machine with random number generationUNIVERSAL KK·Filed 1984·Granted Mar 4, 1986·384 cites·12 claims
- 0996US4718672ASlot machineUNIVERSAL KK·Filed 1986·Granted Jan 12, 1988·412 cites·15 claims
- 1095US4679789AVideo game apparatus with automatic skill level adjustmentUNIVERSAL KK·Filed 1986·Granted Jul 14, 1987·178 cites·6 claims
- 1194US4721307ASlot machineUNIVERSAL KK·Filed 1987·Granted Jan 26, 1988·283 cites·5 claims
- 1294US4508345ASlot machine with player-friendly bonus gameUNIVERSAL KK·Filed 1983·Granted Apr 2, 1985·167 cites·2 claims
- 1393US8475269B2Gaming machine having a function of changing the number of free games according to the result of a role playing gameOKADA KAZUO·Filed 2011·Granted Jul 2, 2013·24 cites·15 claims
- 1492US8021225B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2007·Granted Sep 20, 2011·41 cites·5 claims
- 1592US4668555AHeat insulating bodyMATSUSHITA REFRIGERATION·Filed 1985·Granted May 26, 1987·67 cites·5 claims
- 1692US4492379AReel type slot machineUNIVERSAL KK·Filed 1982·Granted Jan 8, 1985·137 cites·2 claims
- 1791US8102039B2Semiconductor device and manufacturing method thereofNOMA TAKASHI·Filed 2007·Granted Jan 24, 2012·25 cites·8 claims
- 1891US6790142B2Advertisement distribution system and serverARUZE CORP·Filed 2002·Granted Sep 14, 2004·181 cites·20 claims
- 1991US4657247AVideo game apparatus with automatically adjusting timing windowUNIVERSAL KK·Filed 1985·Granted Apr 14, 1987·78 cites·4 claims
- 2091US4657256ASlot machine with win/loss biasing meansUNIVERSAL KK·Filed 1986·Granted Apr 14, 1987·227 cites·4 claims
- 2190US7413931B2Semiconductor device manufacturing methodSANYO ELECTRIC CO·Filed 2005·Granted Aug 19, 2008·20 cites·6 claims
- 2290US7159865B2Gaming apparatusARUZE CORP·Filed 2003·Granted Jan 9, 2007·153 cites·16 claims
- 2390US6695697B1Game device and medium memorizing a game program and readable by a computer for support players′ technical intervention without changing fundemental specification of the game deviceARUZE CO LTD·Filed 2000·Granted Feb 24, 2004·154 cites·26 claims
- 2490US5887110AVideo data playback system using effective scheme for producing coded video data for fast playback modeNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Mar 23, 1999·173 cites·26 claims
- 2590US4773647ASlot machine with stop switch enablement after attainment of minimum reel speedUNIVERSAL KK·Filed 1984·Granted Sep 27, 1988·97 cites·3 claims
- 2690US4752069AVideo game which instructs the user how to playUNIVERSAL KK·Filed 1986·Granted Jun 21, 1988·76 cites·7 claims
- 2789US8821256B2Game systemOKADA KAZUO·Filed 2009·Granted Sep 2, 2014·26 cites·6 claims
- 2889US7220181B2Gaming machine having transparent LCD in front of variable display device, the LCD having a light-guiding plate and a reflective plateARUZE CORP·Filed 2003·Granted May 22, 2007·150 cites·8 claims
- 2989US7097560B2Gaming apparatus with a variable display unit and concealing unit to temporarily conceal the variable display unitARUZE CORP·Filed 2003·Granted Aug 29, 2006·141 cites·12 claims
- 3089US5127651ASlot machineUNIVERSAL KK·Filed 1991·Granted Jul 7, 1992·273 cites·17 claims
- 3189US4995193AMethod of preventing adherence of ash to gasifier wallUBE INDUSTRIES·Filed 1990·Granted Feb 26, 1991·98 cites·4 claims
- 3288US7780515B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2006·Granted Aug 24, 2010·25 cites·19 claims
- 3388US7690998B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2005·Granted Apr 6, 2010·24 cites·18 claims
- 3488US7651393B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2005·Granted Jan 26, 2010·30 cites·17 claims
- 3588US5074559ASlot machineUNIVERSAL KK·Filed 1990·Granted Dec 24, 1991·242 cites·13 claims
- 3687US8182323B2Gaming method and gaming machine accepting side betOKADA KAZUO·Filed 2007·Granted May 22, 2012·21 cites·8 claims
- 3787US7887410B2Gaming machineUNIVERSAL ENTERTAINMENT CORP·Filed 2007·Granted Feb 15, 2011·18 cites·5 claims
- 3887US7301481B2Typing practice apparatus, typing practice method, and typing practice programARUZE CORP·Filed 2005·Granted Nov 27, 2007·9 cites·13 claims
- 3987US6443710B1Magnetic pumpIWAKI CO LTD·Filed 2000·Granted Sep 3, 2002·64 cites·9 claims
- 4087US5083785AWin control method and apparatus for game machinesUNIVERSAL KK·Filed 1990·Granted Jan 28, 1992·217 cites·14 claims
- 4186US5271628ACrane game machineUNIVERSAL KK·Filed 1990·Granted Dec 21, 1993·104 cites·7 claims
- 4286US4772023ASlot machineUNIVERSAL KK·Filed 1987·Granted Sep 20, 1988·145 cites·2 claims
- 4385US7892083B2Gaming apparatus and playing method thereofARUZE GAMING AMERICA INC·Filed 2007·Granted Feb 22, 2011·9 cites·6 claims
- 4485US7567244B2Semiconductor integrated circuit for driving a liquid crystal displayRENESAS TECH CORP·Filed 2006·Granted Jul 28, 2009·12 cites·10 claims
- 4585US5004238ABall-shooting game machineUNIVERSAL COMPANY LTD·Filed 1989·Granted Apr 2, 1991·56 cites·9 claims
- 4684US8128484B2Game system generating second game according to game result of a device and allowing other devices to participate in second game thus generatedOKADA KAZUO·Filed 2010·Granted Mar 6, 2012·9 cites·11 claims
- 4784US7759779B2Semiconductor device and method of manufacturing the sameSANYO SEMICONDUCTOR CO LTD·Filed 2008·Granted Jul 20, 2010·12 cites·5 claims
- 4884US7118601B2Parallel linkage and artificial joint device using the sameHONDA MOTOR CO LTD·Filed 2003·Granted Oct 10, 2006·139 cites·3 claims
- 4984US5024439ASlot machineUNIVERSAL KK·Filed 1990·Granted Jun 18, 1991·155 cites·8 claims
- 5084US4858032ADevice for extracting still picture frames from a moving image video signal and recording same on a magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1987·Granted Aug 15, 1989·44 cites·9 claims
Showing the top 50 of 580 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →