Average Co-Inventor Count = 4.39
ph-index = 1
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 Systems, Ltd. (3 from 34 patents)
2. Hitachi, Ltd. (1 from 42,494 patents)
4 patents:
1. 11100234 - Work recording apparatus, system, program, and method preventing confidential information leaks
2. 11067971 - Production line configuration change system and production line configuration change method
3. 10755222 - Work management apparatus, work defect prevention program, and work defect prevention method
4. 9831827 - Photovoltaic inspection system and photovoltaic inspection method