Average Co-Inventor Count = 10.03
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. Other (2 from 832,880 patents)
2. Tokyo Electron Limited (1 from 10,341 patents)
3. Toshiba Ceramics Co., Ltd. (1 from 189 patents)
3 patents:
1. 6515264 - Heater
2. 6407371 - Heater
3. 6043468 - Carbon heater