Average Co-Inventor Count = 3.32
ph-index = 3
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 (12 from 52,766 patents)
12 patents:
1. 9172581 - Communication system, datacenter apparatus, and control method used in datacenter apparatus
2. 8238331 - Communication system and telephone exchange apparatus
3. 6876732 - Service providing method for electronic device, customer center, and user system
4. 6633631 - Digital key telephone system and extension terminal device thereof
5. 6496576 - Digital key telephone system and extension terminal device thereof
6. 6456705 - Digital key telephone system and extension terminal device thereof
7. 6408060 - Digital key telephone system and extension terminal device thereof
8. 6377671 - Digital key telephone system and extension terminal device thereof
9. 6373924 - Digital key telephone system and extension terminal device thereof
10. 6263061 - Digital button telephone system and extension terminal for the same
11. 5388152 - Key telephone system capable of regulating volume of handset
12. 5313523 - Sound volume controlling apparatus