Yu-En Percy Chang

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Mountain View, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and system for precise lapping of recessed and protruding...
- Patent number 7,275,311
- Issue date Oct 2, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Yuri Markevitch
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus and method for precise lapping of recessed and protruding...
- Patent number 6,935,013
- Issue date Aug 30, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Yuri Markevitch
- B24 - GRINDING POLISHING
Information Patent Grant
Method for manufacture of sliders
- Patent number 6,663,817
- Issue date Dec 16, 2003
- Hitachi Global Storage Technologies Netherlands, B.V.
- Yu-En Percy Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing a pole tip trimmed read/write head structure
- Patent number 6,584,676
- Issue date Jul 1, 2003
- International Business Machines Corporation
- Yu-En Percy Chang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing sliders
- Patent number 6,428,715
- Issue date Aug 6, 2002
- International Business Machines Corporation
- Daniel Gerard Abels
- G11 - INFORMATION STORAGE
Information Patent Grant
Air bearing slider and manufacturing method therefor
- Patent number 6,385,011
- Issue date May 7, 2002
- International Business Machines Corporation
- Yu-En Percy Chang
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for precise lapping of recessed and protruding...
- Publication number 20050217106
- Publication date Oct 6, 2005
- Yuri Markevitch
- B24 - GRINDING POLISHING