P

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 patents
US4799635AJan 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 patents

SSD CO LTD

3 patents

NAKAGAWA KATSUYA

2 patents

PIOLAX INC

1 patent

SONE MOTOKI

1 patent

SONY CORP

1 patent

UESHIMA HIROMU

1 patent