Average Co-Inventor Count = 2.40
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. H. Ikeuchi & Co., Ltd. (2 from 9 patents)
2 patents:
1. 4783008 - Atomizer nozzle assembly
2. 4750515 - Liquid storage tank float valve device