Average Co-Inventor Count = 2.24
ph-index = 9
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Sony Corporation (12 from 58,129 patents)
2. Yokowo Co., Ltd. (1 from 213 patents)
13 patents:
1. D686598 - Antenna for vehicle
2. D674379 - Audio visual device
3. D665346 - Battery charger
4. D614692 - Printer
5. D585486 - Printer
6. D491218 - Printer
7. D489057 - Microphone
8. D488802 - Speaker
9. D473206 - Combined disc player with radio receiver and tape recorder
10. D435535 - Combined disc player, radio receiver and tape player
11. D433013 - Microphone
12. D418820 - Remote controller
13. D351172 - Headphone