Average Co-Inventor Count = 5.87
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. Sanyo Electric Co., Ltd. (3 from 8,782 patents)
2. Tottori Sanyo Electric Co., Ltd. (3 from 143 patents)
3 patents:
1. 7340041 - Telephone device having operation function by voice input
2. 5991439 - Hand-written character recognition apparatus and facsimile apparatus
3. 5940189 - Facsimile apparatus capable of recognizing hand-written addressing