Average Co-Inventor Count = 2.00
ph-index = 4
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. Sharp Kabushiki Kaisha Corporation (4 from 25,537 patents)
4 patents:
1. 4438505 - Electronic dictionary and language interpreter with auto-search key for
2. 4420813 - Operation sequence instruction by synthetic speech
3. 4287584 - Speech-synthesizer timepiece
4. 4279030 - Speech-synthesizer timepiece