Average Co-Inventor Count = 3.01
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. Mitsubishi Rayon Company, Limited (6 from 1,357 patents)
2. Mitsubishi Acetate Co., Ltd (5 from 7 patents)
3. Komatsu Corporation (2 from 2,730 patents)
4. Mitsubishi Adetate Co. (2 from 2 patents)
5. Unicharm Corporation (1 from 1,645 patents)
6. Japan Tobacco Inc. (1 from 1,038 patents)
7. Nachi - Fujikoshi Corporation (1 from 54 patents)
8. Maeda Corporation Limited (1 from 14 patents)
9. Hazama Corporation (1 from 8 patents)
10. Sato Kogyo Co., Ltd. (1 from 8 patents)
11 patents:
1. 9770831 - Industrial robot
2. 9033095 - Exhaust treatment unit, manufacturing method of exhaust treatment unit, and work vehicle
3. 5915790 - Tunnel boring machine
4. 5282779 - Air jet for producing filter plug for cigarette
5. 4826433 - Stick absorber for oral cavity
6. 4670953 - Method for forming warp beam of uniform diameter
7. 4583560 - Tobacco smoke filter
8. 4488563 - Filter plug
9. 4411641 - Method for producing a tobacco smoke filter plug
10. 4357188 - Method for manufacturing cigarette filters
11. 4316475 - Tobacco smoke filter plug and producing method therefor