John C. Tsai

Person

Saratoga, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Rotation and translation measurement
- Patent number 7,375,822
- Issue date May 20, 2008
- Excel Precision Corporation
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Information card system
- Patent number 7,290,709
- Issue date Nov 6, 2007
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Highway-rail grade crossing hazard mitigation
- Patent number 7,268,699
- Issue date Sep 11, 2007
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Grant
Hazard mitigation for railway track intrusions at train station pla...
- Patent number 7,245,217
- Issue date Jul 17, 2007
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Grant
System for rotation measurement with laser interferometry
- Patent number 7,224,467
- Issue date May 29, 2007
- Excel Precision Corporation
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Grant
Optical alignment method and apparatus
- Patent number 7,196,798
- Issue date Mar 27, 2007
- Excel Precision Corporation
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Grant
Tunable wavelength locker, tunable wavelength spectrum monitor, and...
- Patent number 7,139,295
- Issue date Nov 21, 2006
- Fibera, Inc.
- John C. Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Athermal fiber Bragg grating
- Patent number 7,116,846
- Issue date Oct 3, 2006
- Fibera, Inc.
- Joseph A. Methe
- G02 - OPTICS
Information Patent Grant
Rotation and translation measurement
- Patent number 7,110,121
- Issue date Sep 19, 2006
- Excel Precision, Inc.
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Structure analysis and defect detection system
- Patent number 7,027,136
- Issue date Apr 11, 2006
- Fibera, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Grant
Information card system
- Patent number 7,025,265
- Issue date Apr 11, 2006
- Excel Precision Corp.
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fiber optic flow meter
- Patent number 7,004,038
- Issue date Feb 28, 2006
- Fibera, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Grant
Multidimensional optical gratings
- Patent number 6,904,200
- Issue date Jun 7, 2005
- Fibera, Inc.
- David W. Wang
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Light wavelength meter
- Patent number 6,858,834
- Issue date Feb 22, 2005
- Fibera, Inc.
- John C. Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for measuring the wavelength of light present...
- Patent number 6,812,452
- Issue date Nov 2, 2004
- Fibera, Inc.
- John C. Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing and de-multiplexing system
- Patent number 6,807,339
- Issue date Oct 19, 2004
- Fibera, Inc.
- John C. Tsai
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Interference filter fabrication
- Patent number 6,804,060
- Issue date Oct 12, 2004
- Fibera, Inc.
- John C. Tsai
- G02 - OPTICS
Information Patent Grant
Light frequency locker
- Patent number 6,795,459
- Issue date Sep 21, 2004
- Fibera, Inc.
- John C. Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information card system
- Patent number 6,789,738
- Issue date Sep 14, 2004
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical grating fabrication
- Patent number 6,748,138
- Issue date Jun 8, 2004
- Fibera, Inc.
- David W. Wang
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Frequency locker
- Patent number 6,731,659
- Issue date May 4, 2004
- Fibera, Inc.
- John C. Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency detection, tuning and stabilization system
- Patent number 6,718,092
- Issue date Apr 6, 2004
- Fibera, Inc.
- David W. Wang
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Non-contact servo track writing apparatus and method
- Patent number 6,603,629
- Issue date Aug 5, 2003
- Excel Precision, Inc.
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Information card system
- Patent number 6,561,420
- Issue date May 13, 2003
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus and method for inscribing, optically detecting, and using...
- Patent number 6,522,604
- Issue date Feb 18, 2003
- Excel Precision Corporation
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Positional measurement with normalized signal processing
- Patent number 6,317,200
- Issue date Nov 13, 2001
- Excel Precision Corp.
- Mao Wang
- G01 - MEASURING TESTING
Information Patent Grant
Rotation and translation measurement with phase sensitive detection
- Patent number 6,316,779
- Issue date Nov 13, 2001
- Excel Precision Corp.
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for inscribing, optically detecting, and using...
- Patent number 6,266,298
- Issue date Jul 24, 2001
- Excel Precision Corporation
- John C. Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Dual laser system for extended heterodyne interferometry
- Patent number 6,052,186
- Issue date Apr 18, 2000
- Excel Precision, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Grant
Transverse Zeeman laser
- Patent number 5,995,526
- Issue date Nov 30, 1999
- Excel Precision, Inc.
- Guang-Yao Yan
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
TRAFIC MONITORING SYSTEM
- Publication number 20070031084
- Publication date Feb 8, 2007
- Fibera, Inc.
- David W. Wang
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
ROTATION AND TRANSLATION MEASUREMENT
- Publication number 20060268281
- Publication date Nov 30, 2006
- Excel Precision Corporation
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
Fiber optic monitor for railroad switch
- Publication number 20060214068
- Publication date Sep 28, 2006
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Application
FIBER OPTIC TRACK CIRCUIT
- Publication number 20060202860
- Publication date Sep 14, 2006
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Application
INFORMATION CARD SYSTEM
- Publication number 20060192018
- Publication date Aug 31, 2006
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEM FOR GRADE CROSSING ACCIDENT MITIGATION
- Publication number 20060186276
- Publication date Aug 24, 2006
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Application
DIGITAL SCALE FOR LINEAR OR ROTARY STAGE
- Publication number 20060174721
- Publication date Aug 10, 2006
- Excel Precision Corporation
- John C. Tsai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGHWAY-RAIL GRADE CROSSING HAZARD MITIGATION
- Publication number 20060022063
- Publication date Feb 2, 2006
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Application
ATHERMAL FIBER BRAGG GRATING
- Publication number 20050259920
- Publication date Nov 24, 2005
- Fibera, Inc.
- Joseph A. Methe
- G02 - OPTICS
Information Patent Application
HAZARD MITIGATION FOR RAILWAY TRACK INTRUSIONS AT TRAIN STATION PLA...
- Publication number 20050205718
- Publication date Sep 22, 2005
- Fibera, Inc.
- John C. Tsai
- B61 - RAILWAYS
Information Patent Application
FIBER OPTIC FLOW METER
- Publication number 20050145039
- Publication date Jul 7, 2005
- Fibera, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM FOR CREATING AND STORING DIGITAL IMAGES
- Publication number 20050093979
- Publication date May 5, 2005
- John C. Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System for rotation measurement with laser interferometry
- Publication number 20050041254
- Publication date Feb 24, 2005
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
INFORMATION CARD SYSTEM
- Publication number 20050035201
- Publication date Feb 17, 2005
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optical alignment method and apparatus
- Publication number 20050024649
- Publication date Feb 3, 2005
- Excel Precision Corporation
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
MULTIDIMENSIONAL OPTICAL GRATINGS
- Publication number 20040223693
- Publication date Nov 11, 2004
- David W. Wang
- G02 - OPTICS
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXING AND DE-MULTIPLEXING SYSTEM
- Publication number 20040218853
- Publication date Nov 4, 2004
- John C. Tsai
- G02 - OPTICS
Information Patent Application
TUNABLE WAVELENGTH LOCKER, TUNABLE WAVELENGTH SPECTRUM MONITOR, AND...
- Publication number 20040151216
- Publication date Aug 5, 2004
- John C. Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
STRUCTURE ANALYSIS AND DEFECT DETECTION SYSTEM
- Publication number 20040149897
- Publication date Aug 5, 2004
- Fibera, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
DIGITAL SCALE FOR LINEAR OR ROTARY STAGE
- Publication number 20040123684
- Publication date Jul 1, 2004
- Excel Precision Corporation
- John C. Tsai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Wavelength Locker With Confocal Cavity
- Publication number 20040109166
- Publication date Jun 10, 2004
- Fibera, Inc.
- John C. Tsai
- G02 - OPTICS
Information Patent Application
Integrated etalon-beam splitter
- Publication number 20030152127
- Publication date Aug 14, 2003
- Fibera, Inc.
- John C. Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Information card system
- Publication number 20030127521
- Publication date Jul 10, 2003
- Erica Tsai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Light wavelength meter
- Publication number 20030057351
- Publication date Mar 27, 2003
- Fibera, Inc.
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
Frequency detection, tuning and stabilization system
- Publication number 20030053734
- Publication date Mar 20, 2003
- David W. Wang
- B82 - NANO-TECHNOLOGY
Information Patent Application
Optical grating fabrication
- Publication number 20030053733
- Publication date Mar 20, 2003
- David W. Wang
- B82 - NANO-TECHNOLOGY
Information Patent Application
Light wavelength meter
- Publication number 20020125405
- Publication date Sep 12, 2002
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
Light frequency locker
- Publication number 20020122444
- Publication date Sep 5, 2002
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
Rotation and translation measurement
- Publication number 20020093663
- Publication date Jul 18, 2002
- John C. Tsai
- G01 - MEASURING TESTING
Information Patent Application
Apparatus and method for inscribing, optically detecting, and using...
- Publication number 20020012293
- Publication date Jan 31, 2002
- John C. Tsai
- G11 - INFORMATION STORAGE

John C. Tsai

Person

Patents Grantslast 30 patents

Rotation and translation measurement

Information card system

Highway-rail grade crossing hazard mitigation

Hazard mitigation for railway track intrusions at train station pla...

System for rotation measurement with laser interferometry

Optical alignment method and apparatus

Tunable wavelength locker, tunable wavelength spectrum monitor, and...

Athermal fiber Bragg grating

Rotation and translation measurement

Structure analysis and defect detection system

Information card system

Fiber optic flow meter

Multidimensional optical gratings

Light wavelength meter

Apparatus and method for measuring the wavelength of light present...

Wavelength division multiplexing and de-multiplexing system

Interference filter fabrication

Light frequency locker

Information card system

Optical grating fabrication

Frequency locker

Frequency detection, tuning and stabilization system

Non-contact servo track writing apparatus and method

Information card system

Apparatus and method for inscribing, optically detecting, and using...

Positional measurement with normalized signal processing

Rotation and translation measurement with phase sensitive detection

Apparatus and method for inscribing, optically detecting, and using...

Dual laser system for extended heterodyne interferometry

Transverse Zeeman laser

Patents Applicationslast 30 patents

TRAFIC MONITORING SYSTEM

ROTATION AND TRANSLATION MEASUREMENT

Fiber optic monitor for railroad switch

FIBER OPTIC TRACK CIRCUIT

INFORMATION CARD SYSTEM

SYSTEM FOR GRADE CROSSING ACCIDENT MITIGATION

DIGITAL SCALE FOR LINEAR OR ROTARY STAGE

HIGHWAY-RAIL GRADE CROSSING HAZARD MITIGATION

ATHERMAL FIBER BRAGG GRATING

HAZARD MITIGATION FOR RAILWAY TRACK INTRUSIONS AT TRAIN STATION PLA...

FIBER OPTIC FLOW METER

SYSTEM FOR CREATING AND STORING DIGITAL IMAGES

System for rotation measurement with laser interferometry

INFORMATION CARD SYSTEM

Optical alignment method and apparatus

MULTIDIMENSIONAL OPTICAL GRATINGS

WAVELENGTH DIVISION MULTIPLEXING AND DE-MULTIPLEXING SYSTEM

TUNABLE WAVELENGTH LOCKER, TUNABLE WAVELENGTH SPECTRUM MONITOR, AND...

STRUCTURE ANALYSIS AND DEFECT DETECTION SYSTEM

DIGITAL SCALE FOR LINEAR OR ROTARY STAGE

Wavelength Locker With Confocal Cavity

Integrated etalon-beam splitter

Information card system

Light wavelength meter

Frequency detection, tuning and stabilization system

Optical grating fabrication

Light wavelength meter

Light frequency locker

Rotation and translation measurement

Apparatus and method for inscribing, optically detecting, and using...