Average Co-Inventor Count = 2.61
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. Hitachi Metals, Ltd. (2 from 2,333 patents)
2. Hitachi Tool Engineering, Ltd. (2 from 26 patents)
3. Konami Digital Entertainment Co., Ltd. (1 from 530 patents)
4 patents:
1. 8221235 - Drawing machine and game apparatus using the same
2. 6387552 - TiCN-based cermet
3. 5468278 - Cermet alloy
4. 5248352 - TiC-base cermet alloy