Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Vibration sensor employing a flexible diaphragm and an electret film

Vibration sensor employing a flexible diaphragm and an electret film

US Patent 5798460 · Granted Aug 25, 1998

Estimated economic value: $649,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Audio signal processing apparatus, audio signal processing method, program, and 2012
Electroacoustic transducer using diaphragm and method for producing diaphragm2010
Acoustic transducer2001
Speaker apparatus and sound reproduction system employing same2000
Acoustic transducer2000
Vibration sensor using the capacitance between a substrate and a flexible diaphr2000
Vibration sensor using the capacitance between a substrate and a flexible diaphr2000
Optical recording disc recycling method1999
Speaker apparatus1999
Speaker apparatus1999
Navigation device employing an electret vibration sensor1998
Navigation device employing an electret vibration sensor1998