P

Inventor

MURAKAMI HIROKI

JP140 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI HIROKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

12 patents
US7146631B1Dec 5, 2006

Content providing system and terminal used therein

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD75 citations98
US5706346AJan 6, 1998

Scrambling apparatus and descrambling apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD96 citations98
US5621799AApr 15, 1997

Scrambled transmission system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD140 citations98
US7391866B2Jun 24, 2008

Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD78 citations96
US5546461AAug 13, 1996

Scramble system for use in digital video signal recording and reproducing system or transmission and receiving system, comprising scramble apparatus and descramble apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD91 citations96
US5377266ADec 27, 1994

Scramble apparatus and descramble apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD66 citations96
US5515437AMay 7, 1996

Scramble transmission apparatus and signal processing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations93
US7359883B2Apr 15, 2008

License management system, license management device, relay device and terminal device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US5636279AJun 3, 1997

Scramble apparatus and descramble apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US7401232B2Jul 15, 2008

Content playback apparatus method and program and key management apparatus and system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations91
US5668879ASep 16, 1997

Audio scrambling system for scrambling and descrambling audio signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US5617476AApr 1, 1997

Audio scrambling system for scrambling and descrambling audio signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74

FUJI XEROX CO LTD

7 patents

TOKYO ELECTRON LTD

5 patents

WINBOND ELECTRONICS CORP

5 patents

MURAKAMI HIROKI

4 patents

PANASONIC CORP

3 patents

SUMITOMO METAL IND

2 patents

MITSUBISHI ELECTRIC CORP

2 patents

SUMITOMO MITSUBISHI SILICON

2 patents

HITACHI AUTOMOTIVE SYSTEMS LTD

2 patents

HASEBE KAZUHIDE

1 patent

SPANSION LLC

1 patent

SAMSUNG ELECTRONICS CO LTD

1 patent

MORINAGA & CO

1 patent

FANUC CORP

1 patent

YOSHINO KOGYOSHO CO LTD

1 patent

Showing the top 50 of 140 patents by PatentIndex Score.