Masafumi KAMAKURA

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shelf of a network synchronization device, and network synchronizat...
- Patent number 8,995,471
- Issue date Mar 31, 2015
- Hitachi, Ltd.
- Nobuyuki Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication card and optical transmission device
- Patent number 8,626,001
- Issue date Jan 7, 2014
- Hitachi, Ltd.
- Masafumi Kamakura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication card and communication device
- Patent number 8,588,615
- Issue date Nov 19, 2013
- Hitachi, Ltd.
- Masafumi Kamakura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SHELF OF A NETWORK SYNCHRONIZATION DEVICE, AND NETWORK SYNCHRONIZAT...
- Publication number 20120275473
- Publication date Nov 1, 2012
- Hitachi, Ltd
- Nobuyuki YAMAMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION CARD AND OPTICAL TRANSMISSION DEVICE
- Publication number 20120099871
- Publication date Apr 26, 2012
- Hitachi, Ltd.
- Masafumi KAMAKURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FAILURE DISPLAY METHOD, FAILURE SETTING DEVICE AND MONITOR CONTROL...
- Publication number 20110182188
- Publication date Jul 28, 2011
- Hitachi, Ltd.
- HIDEMASA NARITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION CARD AND COMMUNICATION DEVICE
- Publication number 20110176812
- Publication date Jul 21, 2011
- Hitachi, Ltd.
- Masafumi KAMAKURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PLASMA DISPLAY PANEL, DRIVING METHOD OF PLASMA DISPLAY PANEL, AND P...
- Publication number 20090244040
- Publication date Oct 1, 2009
- Hitachi, Ltd.
- Yoshiho SEO
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS