Average Co-Inventor Count = 1.23
ph-index = 3
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. Hoshino Gakki Co., Ltd. (9 from 153 patents)
9 patents:
1. 12327536 - Universal joint, coupling rod appratus, and musical instrument pedal device
2. 11295710 - Bass drum pad and drum kit
3. 11222617 - Snare drum practice pad
4. 10475423 - Pedal device for musical instrument
5. 10366680 - Anti-loosening device for drum tension bolt
6. 10147405 - Drum pedal device
7. 9236038 - Pedal device for drum
8. 9087498 - Tom holder
9. 8748721 - Pedal device for musical instrument