Average Co-Inventor Count = 3.00
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. Kabushiki Kaisha Toshiba (4 from 52,730 patents)
4 patents:
1. 5355278 - Portable electronic apparatus having an electro-magnetic shield
2. 5331508 - Portable electronic apparatus having a removable keyboard unit
3. 5255154 - Portable electronic apparatus with a latch mechanism including an
4. 5251096 - Portable electronic apparatus