Hi Dong Chai

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Binghamton, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Memory storage module for staring and accessing magnetically encode...
- Patent number 5,739,975
- Issue date Apr 14, 1998
- Cartesian Data, Inc.
- A. Harold Parks
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and device for reading and writing magnetically encoded data...
- Patent number 5,621,583
- Issue date Apr 15, 1997
- Cartesian Data, Inc.
- A. Harold Parks
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory storage module for storing and accessing
- Patent number 5,521,774
- Issue date May 28, 1996
- Cartesian Data, Inc.
- A. Harold Parks
- G11 - INFORMATION STORAGE
Information Patent Grant
Low inertia high torque variable reluctance motor
- Patent number 4,475,051
- Issue date Oct 2, 1984
- International Business Machines Corporation
- Hi D. Chai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Serial printer with linear motor drive
- Patent number 4,044,881
- Issue date Aug 30, 1977
- International Business Machines Corporation
- Hi Dong Chai
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Rotary stepper motor and method of operation
- Patent number 4,029,977
- Issue date Jun 14, 1977
- International Business Machines Corporation
- Hi Dong Chai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER