Average Co-Inventor Count = 3.82
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. Ntn Corporation (4 from 2,462 patents)
2. Yamaha Corporation (3 from 5,450 patents)
3. Kyodo Yushi Co., Ltd. (2 from 89 patents)
7 patents:
1. 8530396 - Grease composition for constant velocity joint and constant velocity joint
2. 8377858 - Grease composition for constant velocity joint and constant velocity joint
3. 7481711 - Structure for preventing shaft of constant velocity joint from coming off
4. 7413515 - Drive shaft for ATVs
5. 7272629 - Portal server and information supply method for supplying music content of multiple versions
6. 7167730 - Communication terminal apparatus and method of controlling the same, server apparatus and method of controlling the same, and storage media
7. 6548747 - System of distributing music contents from server to telephony terminal