Kazuhisa YAMASHITA

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Relay device, station side device, and communication system and com...
- Patent number 9,680,575
- Issue date Jun 13, 2017
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Relay device, relay method, and optical communication system which...
- Patent number 9,350,480
- Issue date May 24, 2016
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Office-side line concentration device, access control device, and c...
- Patent number 8,938,168
- Issue date Jan 20, 2015
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal device, method of controlling the same, computer-readable...
- Patent number 8,824,899
- Issue date Sep 2, 2014
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Office-side line concentration device, access control device, and c...
- Patent number 8,582,970
- Issue date Nov 12, 2013
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
RELAY DEVICE, RELAY METHOD, AND OPTICAL COMMUNICATION SYSTEM WHICH...
- Publication number 20160241335
- Publication date Aug 18, 2016
- Sumitomo Electric Industries, Ltd.
- Kazuhisa YAMASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RELAY DEVICE, STATION SIDE DEVICE, AND COMMUNICATION SYSTEM AND COM...
- Publication number 20150326318
- Publication date Nov 12, 2015
- Sumitomo Electric Industries, Ltd.
- Kazuhisa YAMASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RELAY DEVICE, RELAY METHOD, AND OPTICAL COMMUNICATION SYSTEM WHICH...
- Publication number 20140112656
- Publication date Apr 24, 2014
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OFFICE-SIDE LINE CONCENTRATION DEVICE, ACCESS CONTROL DEVICE, AND C...
- Publication number 20140029946
- Publication date Jan 30, 2014
- Sumitomo Electric Industries, Ltd.
- Kazuhisa YAMASHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TERMINAL DEVICE, METHOD OF CONTROLLING THE SAME, COMPUTER-READABLE...
- Publication number 20110026926
- Publication date Feb 3, 2011
- Sumitomo Electric Industries Ltd.
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OFFICE-SIDE LINE CONCENTRATOR , ACCESS CONTROLLER AND COMPUTER PRO...
- Publication number 20100266280
- Publication date Oct 21, 2010
- Kazuhisa Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kazuhisa YAMASHITA

Person

Patents Grantslast 30 patents

Relay device, station side device, and communication system and com...

Relay device, relay method, and optical communication system which...

Office-side line concentration device, access control device, and c...

Terminal device, method of controlling the same, computer-readable...

Office-side line concentration device, access control device, and c...

Patents Applicationslast 30 patents

RELAY DEVICE, RELAY METHOD, AND OPTICAL COMMUNICATION SYSTEM WHICH...

RELAY DEVICE, STATION SIDE DEVICE, AND COMMUNICATION SYSTEM AND COM...

RELAY DEVICE, RELAY METHOD, AND OPTICAL COMMUNICATION SYSTEM WHICH...

OFFICE-SIDE LINE CONCENTRATION DEVICE, ACCESS CONTROL DEVICE, AND C...

TERMINAL DEVICE, METHOD OF CONTROLLING THE SAME, COMPUTER-READABLE...

OFFICE-SIDE LINE CONCENTRATOR , ACCESS CONTROLLER AND COMPUTER PRO...