Average Co-Inventor Count = 4.32
ph-index = 5
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. (3 from 1,258 patents)
2. Kokusai Electric Co., Ltd. (2 from 153 patents)
5 patents:
1. RE43023 - Dual loading port semiconductor processing equipment
2. 7198447 - Semiconductor device producing apparatus and producing method of semiconductor device
3. 6641350 - Dual loading port semiconductor processing equipment
4. 5902103 - Vertical furnace of a semiconductor manufacturing apparatus and a boat
5. 5277215 - Method for supplying and discharging gas to and from semiconductor