Average Co-Inventor Count = 1.43
ph-index = 2
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. Tamron Company, Ltd. (16 from 208 patents)
2. Other (1 from 832,680 patents)
3. Sony Corporation (1 from 58,129 patents)
4. Nikon Corporation (1 from 8,889 patents)
5. Sumita Optical Glass, Inc. (1 from 55 patents)
17 patents:
1. 11598947 - Relay optical system for rigid endoscope
2. 9507132 - Zoom lens and imaging apparatus
3. 9229204 - Zoom lens
4. 9176308 - Zoom lens
5. 8810918 - Large-aperture zoom lens
6. 8531767 - Zoom lens
7. 8531777 - Zoom lens
8. 8498059 - Variable power zoom lens
9. 8305695 - High magnification compact zoom lens
10. 8199414 - Variable power zoom lens
11. 8169718 - Wide-angle zoom lens
12. 8159757 - Zoom lens
13. 8049968 - Zoom lens
14. 7965452 - High magnification compact zoom lens
15. 7940470 - Zoom lens