Average Co-Inventor Count = 7.00
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. Nihon Matai Co., Ltd. (2 from 6 patents)
2. Nippon Yusen Kaisha (2 from 6 patents)
3. Yoshiaki Yuasa (0 patent)
4. Kazuo Yasuzawa (0 patent)
5. Yutaka Niioda (0 patent)
6. Tsutomu Takahashi (0 patent)
7. Hisamoto Naniwa (0 patent)
2 patents:
1. 4784287 - Bulkhead device for use in container liner bags
2. 4674127 - Liner bag for use in containers