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Hsih Chu, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Image scanner using low-pixel-density CCD to achieve high-pixel-den...
Patent number
RE43087
Issue date
Jan 10, 2012
Transpacific Optics LLC
Jenn-Tsair Tsai
358 - Facsimile and static presentation processing
Information
Patent Grant
Slide securing device for flatbed scanning sysem
Patent number
RE42823
Issue date
Oct 11, 2011
Transpacific Optics LLC
Jenn-Tsair Tsai
358 - Facsimile and static presentation processing
Information
Patent Grant
Method for optimizing the best resolution of an optical scanning sy...
Patent number
RE41567
Issue date
Aug 24, 2010
Jenn-Tsair Tsai
358 - Facsimile and static presentation processing
Information
Patent Grant
Securing device for transparent documents in a flatbed scanning system
Patent number
RE41038
Issue date
Dec 15, 2009
Jenn-Tsair Tsai
353 - Optics: image projectors
Information
Patent Grant
Apparatus for scanning documents in front of a document plate
Patent number
RE40974
Issue date
Nov 17, 2009
Jenn-Tsair Tsai
358 - Facsimile and static presentation processing
Information
Patent Grant
Method for optimizing the best resolution of an optical scanning sy...
Patent number
6,879,412
Issue date
Apr 12, 2005
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for scanning document
Patent number
6,809,842
Issue date
Oct 26, 2004
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of adjusting scanner module and device thereof
Patent number
6,728,011
Issue date
Apr 27, 2004
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for scanning documents in front of a document plate
Patent number
6,721,072
Issue date
Apr 13, 2004
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image scanner using low-pixel-density CCD to achieve high-pixel-den...
Patent number
6,707,583
Issue date
Mar 16, 2004
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Slide securing device for flatbed scanning system
Patent number
6,678,075
Issue date
Jan 13, 2004
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Securing device for transparent documents in a flatbed scanning system
Patent number
6,637,897
Issue date
Oct 28, 2003
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Focus controlling method and system for an image capturing system
Patent number
6,611,292
Issue date
Aug 26, 2003
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Focus controlling method and system by evaluating a resolution index
Patent number
6,603,514
Issue date
Aug 5, 2003
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for calibrating reflective lens
Patent number
6,597,441
Issue date
Jul 22, 2003
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for increasing depth of scanning field of a scanning device
Patent number
6,557,762
Issue date
May 6, 2003
Mustek Systems Inc.
Jenn-Tsair Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus and method for locating an optical module of an image-sca...
Patent number
6,529,292
Issue date
Mar 4, 2003
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image scanning device having image data correction function
Patent number
6,516,101
Issue date
Feb 4, 2003
Mustek System, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic balance device for disk
Patent number
6,493,311
Issue date
Dec 10, 2002
Lite-On It Corporation
Jenn-Shing Tsai
G11 - INFORMATION STORAGE
Information
Patent Grant
Image-scanning module for downsizing image-scanning devices
Patent number
6,486,978
Issue date
Nov 26, 2002
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-lenses optical device
Patent number
6,456,327
Issue date
Sep 24, 2002
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Platform adjustment device for scanner
Patent number
6,450,475
Issue date
Sep 17, 2002
Mustek Systems Inc.
Jenn-Tsair Tsai
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Device for quick and precise determination of scan start point for...
Patent number
6,392,762
Issue date
May 21, 2002
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device used in image scanner for quickly and precisely determining...
Patent number
6,381,043
Issue date
Apr 30, 2002
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for obtaining magnification error for image sc...
Patent number
6,377,362
Issue date
Apr 23, 2002
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Scanner module with adjustable magnification ratio
Patent number
6,376,835
Issue date
Apr 23, 2002
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for detecting the occurrence of missing lines on images gene...
Patent number
6,373,983
Issue date
Apr 16, 2002
Mustek Systems, Inc.
Jenn-Tsair Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Device for improving scanning quality of image scanner
Patent number
6,353,486
Issue date
Mar 5, 2002
Mustek Systems, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control method for positioning multiple lens of scanner
Patent number
6,339,482
Issue date
Jan 15, 2002
Mustek System, Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Vibration-reducing device for high-speed rotational body
Patent number
6,334,372
Issue date
Jan 1, 2002
Lite-On Technology Corp.
Lih-Hwa Kuo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Scanner photoelectric module with adjustable lens and charge-coupli...
Publication number
20030086143
Publication date
May 8, 2003
Mustek Systems Inc.
Jenn-Tsair Tsai
G02 - OPTICS
Information
Patent Application
Securing device for transparent documents in a flatbed scanning system
Publication number
20030038926
Publication date
Feb 27, 2003
Mustek Systems Inc.
Jenn-Tsair Tsai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PLATFORM ADUSTMENT DEVICE FOR SCANNER
Publication number
20020084401
Publication date
Jul 4, 2002
Jenn-Tsair Tsai
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
SCANNER PHOTOELECTRIC MODULE WITH ADJUSTABLE LENS AND CHARGE-COUPLI...
Publication number
20020024709
Publication date
Feb 28, 2002
JENN-TSAIR TSAI
G02 - OPTICS
Information
Patent Application
VIBRATION-REDUCING DEVICE FOR HIGH-SPEED ROTATIONAL BODY
Publication number
20010029806
Publication date
Oct 18, 2001
ROSENBERG, KLEIN & LEE
LIH-HWA KUO
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
IMAGE SCANNING METHOD APPLIED TO AN IMAGE SCANNING DEVICE
Publication number
20010013958
Publication date
Aug 16, 2001
JENN-TSAIR TSAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE