Average Co-Inventor Count = 6.30
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. Fuji Electric Fa Components & Systems Co., Ltd. (6 from 151 patents)
2. Ykk Ap Inc. (1 from 14 patents)
3. Ricoh Company, Ltd. (28,559 patents)
7 patents:
1. D657750 - Surge suppression unit for magnetic contactor
2. D657751 - Surge suppression unit for magnetic contactor
3. D656905 - Magnetic contactor
4. D656467 - Auxiliary contact block for magnetic contactor
5. D655251 - Auxiliary contact block for magnetic contactor
6. D655252 - Mechanical interlock unit for magnetic contactor
7. D579758 - Sash lock