Average Co-Inventor Count = 1.71
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. Nikon Corporation (3 from 8,902 patents)
2. Kanto Gakuin University Surface Engineering Research Institute (1 from 5 patents)
3. Kanto Kasei Co., Ltd. (1 from 4 patents)
4. Toyota Jidsoha Kabushiki Kaisha (1 from 3 patents)
5. Toyota Jidosha Kabushiki Kaisha (36,771 patents)
4 patents:
1. 6992000 - Method of plating nonconductor product
2. 5851060 - Projective display device
3. 5810463 - Illumination device
4. 5739923 - Picture image input device