Average Co-Inventor Count = 1.66
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. Kabushiki Kaisha Toshiba (4 from 52,711 patents)
4 patents:
1. 8588388 - Telephone system and server apparatus and control method used in telephone system
2. 8565224 - Telephone system, telephone exchange apparatus, and connection control method used in telephone exchange apparatus
3. 7616626 - Telephone exchange apparatus and control method for telephone exchange apparatus
4. 6876732 - Service providing method for electronic device, customer center, and user system