Masaaki Kawai

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength converter and transmission apparatus
- Patent number 10,955,727
- Issue date Mar 23, 2021
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Optical module, optical control method by optical module, optical s...
- Patent number 8,441,706
- Issue date May 14, 2013
- Fujitsu Limited
- Shinji Yamashita
- G02 - OPTICS
Information Patent Grant
Light output control circuit
- Patent number 7,266,308
- Issue date Sep 4, 2007
- Fujitsu Limited
- Tadao Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Data decision circuit using clock signal which has phase optimized...
- Patent number 7,068,747
- Issue date Jun 27, 2006
- Fuijtsu Limited
- Hiroyuki Rokugawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light output control device
- Patent number 6,975,813
- Issue date Dec 13, 2005
- Fujitsu Limited
- Tadao Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
ATM switch and method for switching path by ATM switch
- Patent number 5,878,025
- Issue date Mar 2, 1999
- Fujitsu Limited
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for high-speed packet switching in a broadband ISDN
- Patent number 5,696,759
- Issue date Dec 9, 1997
- Fujitsu Limited
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching equipment for performing a switching operation for a high...
- Patent number 5,610,913
- Issue date Mar 11, 1997
- Fujitsu Limited
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission circuit for transmitting fixed-length data
- Patent number 5,515,386
- Issue date May 7, 1996
- Fujitsu Limited
- Yuji Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
One bit error correction method having actual data reproduction fun...
- Patent number 5,408,476
- Issue date Apr 18, 1995
- Fujitsu Limited
- Masaaki Kawai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Cross-connection apparatus for B-ISDN
- Patent number 5,265,088
- Issue date Nov 23, 1993
- Fujitsu Limited
- Yuji Takigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for monitoring ATM cross-connecting apparatus by inside-appa...
- Patent number 5,257,311
- Issue date Oct 26, 1993
- Fujitsu Limited
- Hidetoshi Naito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase shift circuit
- Patent number 4,935,701
- Issue date Jun 19, 1990
- Fujitsu Limited
- Masaaki Kawai
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS
- Publication number 20200264492
- Publication date Aug 20, 2020
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
Optical module, optical control method by optical module, optical s...
- Publication number 20100033796
- Publication date Feb 11, 2010
- FUJITSU LIMITED
- Shinji Yamashita
- G02 - OPTICS
Information Patent Application
System, device, and method for optical wavefront control
- Publication number 20090250591
- Publication date Oct 8, 2009
- FUJITSU LIMITED
- Shinji Yamashita
- G02 - OPTICS
Information Patent Application
Light output control circuit
- Publication number 20060024068
- Publication date Feb 2, 2006
- FUJITSU LIMITED
- Tadao Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Data decision circuit using clock signal which has phase optimized...
- Publication number 20020153476
- Publication date Oct 24, 2002
- Hiroyuki Rokugawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masaaki Kawai

Person

Patents Grantslast 30 patents

Wavelength converter and transmission apparatus

Optical module, optical control method by optical module, optical s...

Light output control circuit

Data decision circuit using clock signal which has phase optimized...

Light output control device

ATM switch and method for switching path by ATM switch

Apparatus for high-speed packet switching in a broadband ISDN

Switching equipment for performing a switching operation for a high...

Transmission circuit for transmitting fixed-length data

One bit error correction method having actual data reproduction fun...

Cross-connection apparatus for B-ISDN

System for monitoring ATM cross-connecting apparatus by inside-appa...

Phase shift circuit

Patents Applicationslast 30 patents

WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS

Optical module, optical control method by optical module, optical s...

System, device, and method for optical wavefront control

Light output control circuit

Data decision circuit using clock signal which has phase optimized...