Average Co-Inventor Count = 1.52
ph-index = 4
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. Yamaha Corporation (7 from 5,451 patents)
2. Asmo Co., Ltd. (1 from 800 patents)
8 patents:
1. 10028015 - Signal processing apparatus and signal processing method
2. 9774978 - Position determination apparatus, audio apparatus, position determination method, and program
3. 8620133 - Audio amplifier
4. 7542654 - Video playback control apparatus, content playback control apparatus, and method of supplying commercial information
5. 6831657 - Display control apparatus for displaying gain setting value in predetermined color hue
6. 5885085 - Drive-in interactive system
7. 5827990 - Karaoke apparatus applying effect sound to background video
8. 5708406 - Rotary actuator