Inventor
NAKAGAWA KATSUYA
JP36 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA KATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NINTENDO CO LTD
19 patentsUS4799635AJan 24, 1989
System for determining authenticity of an external memory used in an information processing apparatus
NINTENDO CO LTD141 citations99
US4922420AMay 1, 1990
Video game software selection data processing system
NINTENDO CO LTD364 citations98
US4865321ASep 12, 1989
Memory cartridge and information processor unit using such cartridge
NINTENDO CO LTD186 citations98
US5426762AJun 20, 1995
System for determining a truth of software in an information processing apparatus
NINTENDO CO LTD101 citations96
US5226136AJul 6, 1993
Memory cartridge bank selecting apparatus
NINTENDO CO LTD64 citations96
US5070479ADec 3, 1991
External memory having an authenticating processor and method of operating same
NINTENDO CO LTD103 citations96
US4984193AJan 8, 1991
Memory cartridge
NINTENDO CO LTD65 citations96
US4949298AAug 14, 1990
Memory cartridge having a multi-memory controller with memory bank switching capabilities and data processing apparatus
NINTENDO CO LTD56 citations96
US4941652AJul 17, 1990
Bicycle type training machine
NINTENDO CO LTD73 citations96
US4801489AJan 31, 1989
Printed circuit board capable of preventing electromagnetic interference
NINTENDO CO LTD67 citations94
US5453763ASep 26, 1995
Still picture display apparatus and external memory cartridge used therefor
NINTENDO CO LTD54 citations92
US5317714AMay 31, 1994
Digital sound source apparatus and external memory cartridge used therefor
NINTENDO CO LTD39 citations92
US5276831AJan 4, 1994
Memory cartridge having a multi-memory controller with memory bank switching capabilities and data processing apparatus
NINTENDO CO LTD43 citations92
US4926372AMay 15, 1990
Memory cartridge bank selecting
NINTENDO CO LTD34 citations92
US4860128AAug 22, 1989
Recordable data device having identification symbols formed thereon and cooperating data processing system having registering symbols
NINTENDO CO LTD35 citations92
US5043526AAug 27, 1991
Printed circuit board capable of preventing electromagnetic interference
NINTENDO CO LTD29 citations90
US4745478AMay 17, 1988
RF switch
NINTENDO CO LTD20 citations74
US4481426ANov 6, 1984
Signal transmitting system having spurious radiation preventing function
NINTENDO CO LTD9 citations74
US5140110AAug 18, 1992
Printed circuit board capable of preventing electromagnetic interference
NINTENDO CO LTD16 citations71
SHARP KK
8 patentsUS7266376B2Sep 4, 2007
Method and device for providing information related to activity of user
SHARP KK162 citations99
US6616703B1Sep 9, 2003
Character input apparatus with character string extraction portion, and corresponding storage medium
SHARP KK88 citations98
US5684830ANov 4, 1997
Noise removing device and data communication apparatus using the same
SHARP KK20 citations92
US7136836B1Nov 14, 2006
Accounting and reconciliation system
SHARP KK29 citations86
US7034806B2Apr 25, 2006
Virtual keyboard
SHARP KK16 citations84
US7996186B2Aug 9, 2011
Measurement data communication device, information acquiring device, and system
SHARP KK14 citations83
US7055099B2May 30, 2006
Character input apparatus and storage medium in which character input program is stored
SHARP KK10 citations74
US8005931B2Aug 23, 2011
Service providing apparatus
SHARP KK5 citations55