Average Co-Inventor Count = 3.43
ph-index = 2
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. Denso Corporation (1 from 19,733 patents)
2. Nippondenso Co., Ltd. (1 from 3,252 patents)
2 patents:
1. 5948041 - Information service device having simple data retrieval capabilities
2. 4737916 - Electronic map display system