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Taichung, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Method of optimal focusing for document scanner
Patent number
8,279,496
Issue date
Oct 2, 2012
Transpacific Systems, LLC
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Single step multi-section exposure scanning method
Patent number
RE42774
Issue date
Oct 4, 2011
Transpacific Systems, LLC
Rong-Ji Liu
250 - Radiant energy
Information
Patent Grant
Single step multi-section exposure scanning method
Patent number
RE42033
Issue date
Jan 18, 2011
Rong-Ji Liu
250 - Radiant energy
Information
Patent Grant
Method of shortening multiple-image scanning duration
Patent number
7,733,541
Issue date
Jun 8, 2010
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Scanning device and method for saving compensation memory
Patent number
7,511,863
Issue date
Mar 31, 2009
Tom-Chin Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of shortening multiple-image scanning duration
Patent number
7,265,878
Issue date
Sep 4, 2007
Transpacific IP, Ltd
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of optimal focusing for document scanner
Patent number
7,215,447
Issue date
May 8, 2007
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Scanning device and method for saving compensation memory
Patent number
7,206,093
Issue date
Apr 17, 2007
Tom-Chin Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical scanner equipped with plug-in calibration film
Patent number
7,031,028
Issue date
Apr 18, 2006
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Single step multi-section exposure scanning method
Patent number
6,608,301
Issue date
Aug 19, 2003
Umax Data Systems, Inc.
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Method of optimal focusing for document scanner
Publication number
20090015880
Publication date
Jan 15, 2009
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF SHORTENING MULTIPLE-IMAGE SCANNING DURATION
Publication number
20070258115
Publication date
Nov 8, 2007
Transpacific IP, Ltd.
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Scanning device and method for saving compensation memory
Publication number
20060268370
Publication date
Nov 30, 2006
Transpacific IP, Ltd.
Tom-Chin Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of focusing a selected scanning area for document scanning d...
Publication number
20040057082
Publication date
Mar 25, 2004
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of optimal focusing for document scanner
Publication number
20040047004
Publication date
Mar 11, 2004
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical scanner equipped with plug-in calibration film
Publication number
20030072039
Publication date
Apr 17, 2003
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Scanning method with two exposure steps
Publication number
20030035152
Publication date
Feb 20, 2003
Kuo-Jeng Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of shortening multiple-image scanning duration
Publication number
20030031363
Publication date
Feb 13, 2003
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Single step multi-section exposure scanning method
Publication number
20030025073
Publication date
Feb 6, 2003
Rong-Ji Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Scanning device and method for saving compensation memory
Publication number
20020186422
Publication date
Dec 12, 2002
Tom-Chin Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Focus calibrating method for image scanning device by testing focus...
Publication number
20020140990
Publication date
Oct 3, 2002
Rong-Ji Liu
G02 - OPTICS