Average Co-Inventor Count = 14.99
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. Ricoh Company, Ltd. (3 from 28,577 patents)
3 patents:
1. 7590159 - Surface-emission laser diode operable in the wavelength band of 1.1-1.7 micrometers and optical telecommunication system using such a laser diode
2. 7245647 - Surface-emission laser diode operable in the wavelength band of 1.1-1.7mum and optical telecommunication system using such a laser diode
3. 6975663 - Surface-emission laser diode operable in the wavelength band of 1.1-7μm and optical telecommunication system using such a laser diode