Average Co-Inventor Count = 6.43
ph-index = 1
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. Kubota Corporation (2 from 2,681 patents)
2. Katsumi Ito (0 patent)
3. Osami Fujiwara (0 patent)
4. Kouji Fujiwara (0 patent)
5. Kunisuke Nakamura (0 patent)
6. Shigeaki Okuyama (0 patent)
7. Mitsugu Kobayashi (0 patent)
8. Jituo Yoshida (0 patent)
9. Yoshizo Kuroiwa (0 patent)
10. Norimi Nakamura (0 patent)
2 patents:
1. D297433 - Tractor
2. 4671376 - Automatic differential locking system for a working vehicle