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. Casio Computer Co., Ltd. (1 from 5,220 patents)
2. Tokyo Fm Broadcasting Co., Ltd. (1 from 2 patents)
1 patent:
1. 6049873 - Scrambled information transmitting and receiving method