Average Co-Inventor Count = 4.00
ph-index = 1
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. Kabushiki Kaisha Kawai Gakki Seisakusho (2 from 455 patents)
2 patents:
1. 6162980 - Electronic upright piano and a method of manufacture thereof
2. 5959223 - Method of assembling an upright piano