Average Co-Inventor Count = 2.64
ph-index = 4
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. Tokai Optical Co., Ltd. (3 from 34 patents)
2. Otics Corporation (2 from 95 patents)
3. Toyota Jidosha Kabushiki Kaisha (1 from 36,499 patents)
4. Denso Corporation (1 from 19,697 patents)
5. Tokai Kogaku Co., Ltd. (1 from 1 patent)
7 patents:
1. 9069125 - Optical product and method for manufacturing same
2. 8763576 - Rocker arm with lash adjuster
3. 8182084 - Display unit
4. 8100792 - Hydraulic auto-tensioner
5. 7926939 - Spectacle lens and spectacle
6. 7642194 - Method for etching and apparatus for etching
7. 7178919 - Plastic lens for spectacles