Average Co-Inventor Count = 2.40
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. Nec Corporation (1 from 35,734 patents)
2. Sony Group Corporation (1 from 3,475 patents)
3. Sanyo Denki Co., Ltd. (1 from 322 patents)
3 patents:
1. 12284455 - Optical measurement device and optical measurement system
2. 11959768 - Guidance control device and guidance control method
3. 4965463 - Flat frequency, constant voltage power source device