Average Co-Inventor Count = 7.00
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. Other (1 from 832,843 patents)
2. Hitachi, Ltd. (1 from 42,496 patents)
3. Hitachi Ulsi Systems Co., Ltd. (1 from 336 patents)
2 patents:
1. 7088001 - Semiconductor integrated circuit device with a metallization structure
2. 6764945 - Method of manufacturing a multilayer metallization structure with non-directional sputtering method