Average Co-Inventor Count = 1.89
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. Nsk Corporation (10 from 2,430 patents)
2. Matsushita Electric Industrial Co., Ltd. (7 from 27,375 patents)
3. Kabushiki Kaisha Toshiba (2 from 52,711 patents)
4. Other (1 from 832,680 patents)
5. Sony Corporation (1 from 58,129 patents)
6. Sumitomo Electric Industries, Limited (1 from 10,239 patents)
7. Sumitomo Metal Industries, Inc. (1 from 929 patents)
21 patents:
1. 9036312 - Semiconductor device
2. 7883273 - Cage for roller bearing
3. 7241053 - Rolling bearing unit with sensor
4. 7227119 - Current voltage converter circuit
5. 7045951 - Display unit
6. 7035596 - Multi-mode cellular phone terminal
7. 6971799 - Rolling bearing unit
8. 6926445 - Rolling bearing unit with sensor
9. 6652787 - Process for the production of a wiping material for a vacuum chamber
10. 6575631 - Rolling bearing and rolling bearing device
11. 6512819 - Telephone apparatus
12. 6359870 - Receiving apparatus with intermittent receiving
13. 6259773 - Telephone apparatus with recording and reproduction functions
14. 6152606 - Self-aligning roller bearing
15. 6058165 - Telephone apparatus with recording function