Takashi KOTANIGAWA

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission system and filter penalty reduction method
- Patent number 11,942,755
- Issue date Mar 26, 2024
- Nippon Telegraph and Telephone Corporation
- Kohei Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical amplifier, optical transmission system, and optical cable f...
- Patent number 11,329,445
- Issue date May 10, 2022
- Nippon Telegraph and Telephone Corporation
- Takashi Kotanigawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transport system and resource optimization method
- Patent number 10,250,348
- Issue date Apr 2, 2019
- Nippon Telegraph and Telephone Corporation
- Yoshiaki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Framer and framing method
- Patent number 10,230,457
- Issue date Mar 12, 2019
- Nippon Telegraph and Telephone Corporation
- Kei Kitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Framer and framing method
- Patent number 10,181,921
- Issue date Jan 15, 2019
- Nippon Telegraph and Telephone Corporation
- Masahiro Yokota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Framer, optical transmission device, and framing method
- Patent number 10,063,321
- Issue date Aug 28, 2018
- Nippon Telegraph and Telephone Corporation
- Kei Kitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL CABLE F...
- Publication number 20210257803
- Publication date Aug 19, 2021
- Nippon Telegraph and Telephone Corporation
- Takashi Kotanigawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND FILTER PENALTY REDUCTION METHOD
- Publication number 20210234617
- Publication date Jul 29, 2021
- Nippon Telegraph and Telephone Corporation
- Kohei Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAMER AND FRAMING METHOD
- Publication number 20170366288
- Publication date Dec 21, 2017
- Nippon Telegraph and Telephone Corporation
- Masahiro YOKOTA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAMER AND FRAMING METHOD
- Publication number 20170324472
- Publication date Nov 9, 2017
- Nippon Telegraph and Telephone Corporation
- Kei KITAMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSPORT SYSTEM AND RESOURCE OPTIMIZATION METHOD
- Publication number 20170324496
- Publication date Nov 9, 2017
- Nippon Telegraph and Telephone Corporation
- Yoshiaki YAMADA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAMER, OPTICAL TRANSMISSION DEVICE, AND FRAMING METHOD
- Publication number 20170257169
- Publication date Sep 7, 2017
- Nippon Telegraph and Telephone Corporation
- Kei KITAMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Takashi KOTANIGAWA

Person

Patents Grantslast 30 patents

Optical transmission system and filter penalty reduction method

Optical amplifier, optical transmission system, and optical cable f...

Optical transport system and resource optimization method

Framer and framing method

Framer and framing method

Framer, optical transmission device, and framing method

Patents Applicationslast 30 patents

OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL CABLE F...

OPTICAL TRANSMISSION SYSTEM AND FILTER PENALTY REDUCTION METHOD

FRAMER AND FRAMING METHOD

FRAMER AND FRAMING METHOD

OPTICAL TRANSPORT SYSTEM AND RESOURCE OPTIMIZATION METHOD

FRAMER, OPTICAL TRANSMISSION DEVICE, AND FRAMING METHOD