Average Co-Inventor Count = 1.12
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. Koito Manufacturing Company, Ltd. (4 from 2,302 patents)
2. Ricoh Company, Ltd. (1 from 28,544 patents)
3. Koito Manufacturing., Ltd. (1 from 4 patents)
6 patents:
1. 11832461 - Photoelectric conversion module, electronic device, and power supply module
2. 6471384 - Vehicle headlamp
3. 6325529 - Vehicle lamp with shade having reflector following edge
4. 6089737 - Headlamp for automobile
5. 6079860 - Vehicular lighting device having a shade component
6. 5833345 - Automobile headlamp