Masaaki TAKIZAWA

Person

Fukushima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wireless terminal, access point, system provided with the same, and...
- Patent number 8,040,898
- Issue date Oct 18, 2011
- Hitachi, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication system, access point and wireless station co...
- Patent number 7,818,014
- Issue date Oct 19, 2010
- Hitachi, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication system, wireless relay unit and wireless ter...
- Patent number 7,542,719
- Issue date Jun 2, 2009
- Hitachi Communication Technologies, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Computers
- Patent number 6,549,414
- Issue date Apr 15, 2003
- Cybernetics Technology Co., Ltd.
- Tsunemi Tokuhara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
ATM communication terminal and ATM communication system
- Patent number 6,496,522
- Issue date Dec 17, 2002
- Hitachi, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Code string editing apparatus, picture coded signal decoding appara...
- Patent number 6,341,177
- Issue date Jan 22, 2002
- Hitachi, Ltd.
- Masaaki Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Picture codec and teleconference terminal equipment
- Patent number 6,285,391
- Issue date Sep 4, 2001
- Hitachi, Ltd.
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Picture codec and teleconference terminal equipment
- Patent number 6,249,309
- Issue date Jun 19, 2001
- Hitachi, Ltd.
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Code string editing apparatus, picture coded signal decoding appara...
- Patent number 6,181,824
- Issue date Jan 30, 2001
- Hitachi, Ltd.
- Masaaki Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Multipoint teleconference system employing H. 221 frames
- Patent number 5,970,054
- Issue date Oct 19, 1999
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Television telephone
- Patent number 5,966,164
- Issue date Oct 12, 1999
- Hitachi, Ltd.
- Hiroshi Gotoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Teleconference module with video codec for motion picture data
- Patent number 5,936,945
- Issue date Aug 10, 1999
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low bit rate coder for still and motion images using sub-sampling
- Patent number 5,828,411
- Issue date Oct 27, 1998
- Hitachi, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Picture codec for teleconference equipment, which forms and display...
- Patent number 5,790,178
- Issue date Aug 4, 1998
- Hitachi, Ltd.
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Picture codec and teleconference terminal equipment
- Patent number 5,777,663
- Issue date Jul 7, 1998
- Hitachi, Ltd.
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Picture codec and teleconference terminal equipment
- Patent number 5,689,300
- Issue date Nov 18, 1997
- Hitachi, Ltd.
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Television telephone
- Patent number 5,677,727
- Issue date Oct 14, 1997
- Hitachi, Ltd.
- Hiroshi Gotoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Teleconference terminal equipment and teleconference module
- Patent number 5,606,554
- Issue date Feb 25, 1997
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multipoint teleconference system employing H. 221 frames
- Patent number 5,604,738
- Issue date Feb 18, 1997
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Teleconference terminal equipment and teleconference module
- Patent number 5,477,546
- Issue date Dec 19, 1995
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multipoint teleconference system employing H. 221 frames
- Patent number 5,402,418
- Issue date Mar 28, 1995
- Hitachi, Ltd.
- Yoji Shibata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Television telephone
- Patent number 5,396,269
- Issue date Mar 7, 1995
- Hitachi, Ltd.
- Hiroshi Gotoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiplexing transmission apparatus for image signal and multiplexi...
- Patent number 5,371,535
- Issue date Dec 6, 1994
- Hitachi, Ltd.
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multipoint teleconference system employing communication channels s...
- Patent number 5,365,265
- Issue date Nov 15, 1994
- Hitachi, Ltd.
- Yoji Shibata
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Image coding apparatus
- Patent number 5,343,256
- Issue date Aug 30, 1994
- Hitachi, Ltd.
- Jun-ichi Kimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Matrix multiplier and picture transforming coder using the same
- Patent number 5,325,215
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Koichi Shibata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Picture signal processor, picture signal coder and picture signal i...
- Patent number 5,028,995
- Issue date Jul 2, 1991
- Hitachi, Ltd.
- Yuuji Izawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Entropy-coding system
- Patent number 4,939,583
- Issue date Jul 3, 1990
- Hitachi, Ltd.
- Yukitoshi Tsuboi
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Wireless Terminal, Access Point, System Provided with the Same, and...
- Publication number 20080123606
- Publication date May 29, 2008
- Masaaki TAKIZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless communication system, wireless relay unit and wireless ter...
- Publication number 20060271969
- Publication date Nov 30, 2006
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless communication system, access point and wireless station co...
- Publication number 20060234720
- Publication date Oct 19, 2006
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ATM communication terminal and ATM communication system
- Publication number 20020061023
- Publication date May 23, 2002
- Masaaki Takizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Picture codec and teleconference terminal equipment
- Publication number 20020018114
- Publication date Feb 14, 2002
- Yoji Shibata
- G06 - COMPUTING CALCULATING COUNTING

Masaaki TAKIZAWA

Person

Patents Grantslast 30 patents

Wireless terminal, access point, system provided with the same, and...

Wireless communication system, access point and wireless station co...

Wireless communication system, wireless relay unit and wireless ter...

Computers

ATM communication terminal and ATM communication system

Code string editing apparatus, picture coded signal decoding appara...

Picture codec and teleconference terminal equipment

Picture codec and teleconference terminal equipment

Code string editing apparatus, picture coded signal decoding appara...

Multipoint teleconference system employing H. 221 frames

Television telephone

Teleconference module with video codec for motion picture data

Low bit rate coder for still and motion images using sub-sampling

Picture codec for teleconference equipment, which forms and display...

Picture codec and teleconference terminal equipment

Picture codec and teleconference terminal equipment

Television telephone

Teleconference terminal equipment and teleconference module

Multipoint teleconference system employing H. 221 frames

Teleconference terminal equipment and teleconference module

Multipoint teleconference system employing H. 221 frames

Television telephone

Multiplexing transmission apparatus for image signal and multiplexi...

Multipoint teleconference system employing communication channels s...

Image coding apparatus

Matrix multiplier and picture transforming coder using the same

Picture signal processor, picture signal coder and picture signal i...

Entropy-coding system

Patents Applicationslast 30 patents

Wireless Terminal, Access Point, System Provided with the Same, and...

Wireless communication system, wireless relay unit and wireless ter...

Wireless communication system, access point and wireless station co...

ATM communication terminal and ATM communication system

Picture codec and teleconference terminal equipment