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. Other (1 from 832,912 patents)
2. Hitachi, Ltd. (1 from 42,517 patents)
3. Hitachi Media Electronics Co., Ltd. (1 from 203 patents)
2 patents:
1. 6343095 - Radio receiver using level-variable reference signal for discriminative detection of data signal and signal discrimination method
2. 6094451 - Radio receiver using level-variable reference, signal for discriminative