Average Co-Inventor Count = 10.24
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. Takenaka Komuten Co., Ltd. (2 from 36 patents)
2. Kyokuto Kaihatsu Kogyo, Co., Ltd. (1 from 11 patents)
2 patents:
1. 4519768 - Apparatus for horizontally casting concrete
2. 4069678 - Device for solidifying sludgy material in a surface layer