Average Co-Inventor Count = 1.33
ph-index = 2
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. Dainippon Screen Mfg. Co., Ltd. (4 from 1,306 patents)
4 patents:
1. 8157496 - Substrate processing apparatus and substrate transfer method
2. 7513263 - Substrate holding device and substrate processing apparatus
3. 7407363 - Substrate transport apparatus and substrate transport method
4. 7354481 - Substrate holding and rotating apparatus