Uppsala
Sweden
4
2008-01-17
Anders Sagren from Uppsala, SE has applied for patents for these inventions. The list has both pending applications and granted patents:
HIGH-FREQUENCY DIAPHRAGM AND VOICE COIL ASSEMBLY
#2 | 2006-11-16Electro-acoustic converter with demountable diaphragm and voice coil assembly
#3 | 2005-09-22Drive unit for electro-acoustic converter with radially magnetized permanent magnetic bars
#4 | 2005-09-22Drive unit for electro-acoustic converter with dual magnetic circuits sharing permanent magnet
4096242 ⎘