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. Hitachi Electronics Engineering Co., Ltd. (1 from 88 patents)
1 patent:
1. 6552535 - Defect detector circuit with a signal synthesizer and magnet disk certifier using the same defect detector circuit