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Katsuya Ishikawa
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Zama, JP
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last 30 patents
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Patent Grant
Systems, apparatus and methods for data distribution and display
Patent number
6,650,647
Issue date
Nov 18, 2003
International Business Machines Corporation
Katsuya Ishikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission of coded and compressed voice and image data in fixed...
Patent number
6,084,911
Issue date
Jul 4, 2000
International Business Machines Corporation
Katsuya Ishikawa
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Connection method for a network system and a server computer
Patent number
6,038,602
Issue date
Mar 14, 2000
International Business Machines Corporation
Katsuya Ishikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Gateway system that relays data via a PBX to a computer connected t...
Patent number
5,636,218
Issue date
Jun 3, 1997
International Business Machines Corporation
Katsuya Ishikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE