Average Co-Inventor Count = 6.00
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. Japan Aerospace Exploration Agency (2 from 236 patents)
2. Ihi Aerospace Co., Ltd. (1 from 50 patents)
3. Ricoh Company, Ltd. (28,544 patents)
2 patents:
1. 8881501 - Propellant tank and vapor jet emitting device including same
2. 8596038 - Liquid propellant tank and vapor jet emitting device including same