Average Co-Inventor Count = 3.87
ph-index = 6
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. Nichias Corporation (3 from 254 patents)
2. Other (2 from 832,966 patents)
3. Nippon Oil Company (2 from 690 patents)
4. Tokyo Electron Limited (1 from 10,366 patents)
5. Taisei Corporation (1 from 80 patents)
6. Nichias Co., Ltd. (1 from 7 patents)
8 patents:
1. 7160362 - Method and device for cleaning air
2. 6748751 - Air cooling device and air cooling method
3. 5698165 - Ozone filter and process for producing the same
4. 5262129 - Ozone filter and method of production thereof
5. 4992319 - Activated carbon supporting honeycomb structure and process for
6. 4911227 - Heat exchange apparatus for effecting heat exchange in plurality of
7. 4789585 - Heat transfer block for cross flow heat exchanger
8. 4533581 - Highly heat-resistant disc roll