Average Co-Inventor Count = 4.71
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. Gastec Corporation (3 from 6 patents)
2. Other (1 from 832,880 patents)
3. National Institute of Advanced Industrial Science and Technology (1 from 1,715 patents)
4. Tokyo Gas Company Limited (1 from 193 patents)
4 patents:
1. 6977506 - Method of analyzing gas using quartz oscillator and apparatus therefor
2. 6312918 - Examination method of infection with Helicobacter pylori
3. 6048733 - DMS detecting agent, method for preparing the same and DMS detector tube
4. 5719052 - Simple examination method of infection with Helicobacter pylori and