Average Co-Inventor Count = 3.00
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. Hitachi-kokusai Electric Inc. (2 from 1,258 patents)
2. Kokusai Electric Corporation (2 from 608 patents)
3. Kokusai Electric Co., Ltd. (2 from 153 patents)
6 patents:
1. D997892 - End effector for handling wafers
2. 11359283 - Reaction tube structure and substrate processing apparatus
3. 8071477 - Method of manufacturing semiconductor device and substrate processing apparatus
4. 8070880 - Substrate processing apparatus
5. 6332898 - Substrate processing apparatus and maintenance method therefor
6. 6143040 - Substrate processing apparatus and maintenance method therefor