Average Co-Inventor Count = 4.61
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 Industrial Equipment Systems Co., Ltd. (3 from 493 patents)
3 patents:
1. 9601255 - Amorphous core transformer
2. 9230729 - Transformer, amorphous transformer and method of manufacturing the transformer
3. 9000877 - Transformer, amorphous transformer and method of manufacturing the transformer