Average Co-Inventor Count = 2.23
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. Nec Corporation (3 from 35,756 patents)
2. Shimizu Construction Co., Ltd. (1 from 116 patents)
3. Canon Kabushiki Kaisha (90,809 patents)
4. Ricoh Company, Ltd. (28,584 patents)
4 patents:
1. 7647292 - Document management network system for managing original document information and additional information
2. 7185072 - Topology information automatic configuration method and its topology information automatic configuration system
3. 6665713 - Topology information automatic configuration method and its topology information automatic configuration system
4. 5259159 - Construction having a damping device