Average Co-Inventor Count = 2.28
ph-index = 5
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. Dai Nippon Printing Co., Ltd. (6 from 3,192 patents)
2. Olympus Optical Company, Ltd. (3 from 5,729 patents)
3. Dai Nippon Insatsu Kabushiki Kaisha (2 from 412 patents)
11 patents:
1. 6129966 - Image-receiving sheet
2. 6008157 - Thermal transfer sheet
3. 5714434 - Thermal transfer sheet
4. 5683955 - Thermal transfer sheet
5. 5627127 - Thermal transfer sheet
6. 5418209 - Thermal transfer sheet
7. 5405823 - Thermosensitive recording material
8. 5296446 - Thermosensitive recording material
9. 4736734 - Endoscope with variable illumination angle
10. 4537453 - Connecting mechanism of light source device for endoscope
11. 4288882 - Endoscope sheath cleaning device