Average Co-Inventor Count = 1.18
ph-index = 8
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 Airlines Co., Ltd. (6 from 18 patents)
2. Hsst Corporation (4 from 7 patents)
10 patents:
1. 5247890 - Girder type switch track
2. 5199674 - Multi-articulation switch
3. 5193767 - Girder type switch track
4. 5178037 - Centering and fixing apparatus
5. 4280412 - Independent suspension system for attraction type magnetically floated
6. 4123976 - Attractive type electromagnet device for magnetic levitation running
7. 4109584 - Track switching device for two-rail type tracks
8. 4106600 - Current collecting system for vehicle
9. 4064808 - Armature rails and rail carrying arrangement for attraction type
10. 4029020 - Magnetically levitated vehicle with module construction of suspension