IP Library › Granted Patent US 6,809,611
Granted Patent Utility
US 6,809,611 · App. 10/264,986

Composite filter, antenna duplexer, and communication apparatus

Inventors: Toshio Ishizaki, Hiroyuki Nakamura
Patented Case View Patent ↗
Granted: Oct 26, 2004 Filed: Oct 1, 2002
Inventors
Toshio Ishizaki
Hiroyuki Nakamura
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.

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Quick Facts
Patent No.
US 6,809,611
App. No.
10/264,986
Filed
2002-10-01
Granted
2004-10-26
Kind
B2