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Inventor

Wen-Chein David Hsiao

Inventor
San Jose, CA, US

Overview

3→
Patents
2005–2009
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer50%
Y10TTechnical subjects covered by former us classification50%
PatentTitleYear
7,489,474'Magnetic head having a notched pole piece structure'20097,391,591'Magnetic head having a notched pole piece structure and method of making the same'20086,947,255'Magnetic head having a notched pole piece structure and method of making the same'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2009Patents assigned to IBM (3)· patent assignee history
2005–2009Based in San Jose, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM32005–2009
Locations
LocationPatentsSpan
San Jose, California, US32005–2009