Average Co-Inventor Count = 2.00
ph-index = 3
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. Kuroda Precision Industries Ltd. (3 from 53 patents)
2. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)
3 patents:
1. 4693454 - Air pressure shock absorber
2. 4500075 - Air pressure shock absorber
3. 4344603 - Electromagnetic valve apparatus with a hand-operated transfer device