Katsuhito Takezawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Facsimile apparatus employing user-to-user information on an ISDN
- Patent number 5,583,658
- Issue date Dec 10, 1996
- Canon Kabushiki Kaisha
- Katsuhito Takezawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication terminal apparatus having an interrupt/restart functi...
- Patent number 5,146,598
- Issue date Sep 8, 1992
- Canon Kabushiki Kaisha
- Katsuhito Takezawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for processing character and image data
- Patent number 5,113,492
- Issue date May 12, 1992
- Canon Kabushiki Kaisha
- Yumi Ariki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data communication system
- Patent number 4,907,094
- Issue date Mar 6, 1990
- Canon Kabushiki Kaisha
- Kenichi Mishima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data communication apparatus
- Patent number 4,829,385
- Issue date May 9, 1989
- Canon Kabushiki Kaisha
- Katsuhito Takezawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE