Average Co-Inventor Count = 9.00
ph-index = 2
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. Inax Corporation (2 from 111 patents)
2. Chichibu Cement Co., Ltd. (2 from 24 patents)
3. Ilb Co., Ltd. (2 from 4 patents)
4. Shigeo Suda (0 patent)
5. Osamu Kodama (0 patent)
6. Takumi Tanikawa (0 patent)
7. Hideyuki Munakata (0 patent)
8. Kinoto Yoshida (0 patent)
9. Morizumi Fujii (0 patent)
10. Michihiko Nishimura (0 patent)
11. Kazuro Kuroe (0 patent)
12. Tokihiro Tsuda (0 patent)
2 patents:
1. 5051023 - Fracture-free layered paving blocks
2. 4995932 - Method for production of paving blocks