Hengchang Guo

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Rancho Santa Margarita, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Data storage device computing notch filters for multiple temperatures
- Patent number 10,629,234
- Issue date Apr 21, 2020
- Western Digital Technologies, Inc.
- Hengchang Guo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Polarity detection of piezoelectric actuator in disk drive
- Patent number 8,797,664
- Issue date Aug 5, 2014
- Western Digital Technologies, Inc.
- Hengchang Guo
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive updating compensation values for multiple servo sectors...
- Patent number 8,743,503
- Issue date Jun 3, 2014
- Western Digital Technologies, Inc.
- Shan Tang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive correcting track ID in response to an estimated radial l...
- Patent number 8,553,351
- Issue date Oct 8, 2013
- Western Digital Technologies, Inc.
- Aswartha Narayana
- G11 - INFORMATION STORAGE