Hirotake Kawakami

Follow

Person

Tokyo, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Method of assembling a diaphragm assembly for an electro-acoustic t...
- Patent number 4,042,438
- Issue date Aug 16, 1977
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pickup-cartridge with moving magnet
- Patent number 3,987,255
- Issue date Oct 19, 1976
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Moving coil pickup cartridge with diaphragm coupling
- Patent number 3,956,598
- Issue date May 11, 1976
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic loudspeaker
- Patent number 3,955,055
- Issue date May 4, 1976
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic transducer
- Patent number 3,942,029
- Issue date Mar 2, 1976
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic transducer assembly
- Patent number 3,941,946
- Issue date Mar 2, 1976
- Sony Corporation
- Hirotake Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE