Ryuichi Ikematsu

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical network controller and optical network control method
- Patent number 10,193,651
- Issue date Jan 29, 2019
- NEC Corporation
- Hitoshi Takeshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switch, optical transmission device, and optical switching...
- Patent number 9,609,401
- Issue date Mar 28, 2017
- NEC Corporation
- Hitoshi Takeshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quality measuring system, quality measuring apparatus, quality meas...
- Patent number 8,693,338
- Issue date Apr 8, 2014
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for GFP frame transfer
- Patent number 7,298,694
- Issue date Nov 20, 2007
- NEC Corporation
- Satoshi Kamiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-mode scheduler, apparatus including multi-mode scheduler and...
- Patent number 6,934,295
- Issue date Aug 23, 2005
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network termination device, alarm transfer system and alarm transfe...
- Patent number 6,756,898
- Issue date Jun 29, 2004
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scheduler using small sized shuffle pattern in ATM network
- Patent number 6,731,636
- Issue date May 4, 2004
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hitless switching system of ATM switch apparatus in which discard p...
- Patent number 6,535,479
- Issue date Mar 18, 2003
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching system for asynchronous transfer mode switch
- Patent number 6,490,282
- Issue date Dec 3, 2002
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Test method and apparatus capable of testing reception of a desired...
- Patent number 5,440,565
- Issue date Aug 8, 1995
- NEC Corporation
- Akihiro Miyamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High throughput supervisory system for ATM switching systems transp...
- Patent number 5,359,600
- Issue date Oct 25, 1994
- Nippon Telegraph and Telephone Corporation
- Hiromi Ueda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL NETWORK CONTROLLER AND OPTICAL NETWORK CONTROL METHOD
- Publication number 20160352452
- Publication date Dec 1, 2016
- NEC Corporation
- Hitoshi TAKESHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SWITCH, OPTICAL TRANSMISSION DEVICE, AND OPTICAL SWITCHING...
- Publication number 20150289036
- Publication date Oct 8, 2015
- NEC Corporation
- Hitoshi Takeshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
QUALITY MEASURING SYSTEM, QUALITY MEASURING APPARATUS, QUALITY MEAS...
- Publication number 20100220612
- Publication date Sep 2, 2010
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network termination device, alarm transfer system and alarm transfe...
- Publication number 20030058106
- Publication date Mar 27, 2003
- NEC Corporation
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus and method for GFP frame transfer
- Publication number 20020090007
- Publication date Jul 11, 2002
- Satoshi Kamiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multi-mode scheduler, apparatus including multi-mode scheduler and...
- Publication number 20010014098
- Publication date Aug 16, 2001
- Ryuichi Ikematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ryuichi Ikematsu

Person

Patents Grantslast 30 patents

Optical network controller and optical network control method

Optical switch, optical transmission device, and optical switching...

Quality measuring system, quality measuring apparatus, quality meas...

Apparatus and method for GFP frame transfer

Multi-mode scheduler, apparatus including multi-mode scheduler and...

Network termination device, alarm transfer system and alarm transfe...

Scheduler using small sized shuffle pattern in ATM network

Hitless switching system of ATM switch apparatus in which discard p...

Switching system for asynchronous transfer mode switch

Test method and apparatus capable of testing reception of a desired...

High throughput supervisory system for ATM switching systems transp...

Patents Applicationslast 30 patents

OPTICAL NETWORK CONTROLLER AND OPTICAL NETWORK CONTROL METHOD

OPTICAL SWITCH, OPTICAL TRANSMISSION DEVICE, AND OPTICAL SWITCHING...

QUALITY MEASURING SYSTEM, QUALITY MEASURING APPARATUS, QUALITY MEAS...

Network termination device, alarm transfer system and alarm transfe...

Apparatus and method for GFP frame transfer

Multi-mode scheduler, apparatus including multi-mode scheduler and...