Average Co-Inventor Count = 2.73
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. Sokudo Co., Ltd. (3 from 58 patents)
2. Dainippon Screen Mfg. Co., Ltd. (1 from 1,306 patents)
3. Screen Semiconductor Solutions Co., Ltd. (1 from 49 patents)
5 patents:
1. 10160012 - Cup and substrate processing apparatus
2. 8286293 - Substrate cleaning device and substrate processing apparatus including the same
3. 8166985 - Substrate cleaning and processing apparatus with magnetically controlled spin chuck holding pins
4. 7641406 - Bevel inspection apparatus for substrate processing
5. 5788773 - Substrate spin treating method and apparatus