IP Library › Granted Patent US 6,679,677
Granted Patent Utility
US 6,679,677 · App. 10/061,130

Vacuum pump

Inventor: Akira Yamauchi
Patented Case View Patent ↗
Granted: Jan 20, 2004 Filed: Jan 31, 2002
Inventor
Akira Yamauchi
Assignee (at issue)
SEIKO INSTRUMENTS INC.

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Quick Facts
Patent No.
US 6,679,677
App. No.
10/061,130
Filed
2002-01-31
Granted
2004-01-20
Kind
B2