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Masumi Ishiwatari
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Shimomaruko, Ohta-ku, Tokyo,, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Remote control system, remote control apparatus, remote control met...
Patent number
7,822,409
Issue date
Oct 26, 2010
Canon Kabushiki Kaisha
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Determining the accessibility of a portable storage device using fo...
Patent number
7,447,835
Issue date
Nov 4, 2008
Canon Kabushiki Kaisha
Masato Fujiwara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Inhibiting access to a portable storage device
Patent number
7,213,119
Issue date
May 1, 2007
Canon Kabushiki Kaisha
Masato Fujiwara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Remote control system, remote control apparatus, remote control met...
Patent number
7,177,633
Issue date
Feb 13, 2007
Canon Kabushiki Kaisha
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Portable device settable in a host apparatus and combined system th...
Patent number
5,602,652
Issue date
Feb 11, 1997
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System utilizing portable device
Patent number
5,283,820
Issue date
Feb 1, 1994
Canon Kabushiki Kaisha
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication apparatus used with a card-like device
Patent number
5,239,386
Issue date
Aug 24, 1993
Canon Kabushiki Kaisha
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Desk top electronic calculator
Patent number
D269356
Issue date
Jun 14, 1983
Canon Kabushiki Kaisha
Eiichi Yoshioka
D18 - Printing and office machinery
Information
Patent Grant
Liquid crystal display device
Patent number
4,295,712
Issue date
Oct 20, 1981
Canon Kabushiki Kaisha
Masumi Ishiwatari
G02 - OPTICS
Information
Patent Grant
Key signal entering device for thin electronic apparatus
Patent number
4,261,042
Issue date
Apr 7, 1981
Canon Kabushiki Kaisha
Masumi Ishiwatari
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Booster circuit
Patent number
4,186,436
Issue date
Jan 29, 1980
Canon Kabushiki Kaisha
Masumi Ishiwatari
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
REMOTE CONTROL SYSTEM, REMOTE CONTROL APPARATUS, REMOTE CONTROL MET...
Publication number
20070111720
Publication date
May 17, 2007
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PORTABLE STORAGE DEVICE, METHOD OF CONTROLLING THE SAME, CONTROL PR...
Publication number
20060262443
Publication date
Nov 23, 2006
Canon Kabushiki Kaisha
Masato FUJIWARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Portable storage device, method of controlling the same, control pr...
Publication number
20040165314
Publication date
Aug 26, 2004
Masato Fujiwara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Remote control system, remote control apparatus, remote control met...
Publication number
20040157558
Publication date
Aug 12, 2004
Masumi Ishiwatari
H04 - ELECTRIC COMMUNICATION TECHNIQUE