Average Co-Inventor Count = 1.25
ph-index = 10
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. Asahi Kogaku Kogyo Kabushiki Kaisha (12 from 3,132 patents)
2. Pentax Corporation (10 from 1,056 patents)
3. Asahi Kogaku Kogyo K.k. (2 from 176 patents)
24 patents:
1. D574026 - Convertible lens for single-lens reflex camera
2. D542825 - Digital single-lens reflex camera
3. D542824 - Digital single-lens reflex camera
4. D542823 - Digital single-lens reflex camera
5. D524346 - Digital camera
6. D524351 - Digital camera
7. D503185 - Battery grip for single-lens reflex camera
8. D491596 - Digital camera
9. D491593 - Digital camera
10. D491597 - Digital camera
11. 6427052 - Exposure-condition setting device for camera
12. D451940 - Single-lens reflex camera body
13. D449327 - Single-lens reflex digital camera body
14. D413346 - Single-lens reflex camera body
15. 5774746 - Camera with learning function