Average Co-Inventor Count = 8.00
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. Doryokuro Kakunenryo Kaihatsu Jigyodan (1 from 196 patents)
2. Kiso-jiban Consultants Co., Ltd. (1 from 2 patents)
3. Hiroshi Mori (0 patent)
4. Koichi Yanagisawa (0 patent)
5. Toshihiro Seo (0 patent)
6. Katsushi Nakano (0 patent)
7. Yukifusa Nakashima (0 patent)
8. Katsuhiro Hama (0 patent)
9. Yukio Sakai (0 patent)
10. Kenji Teshima (0 patent)
1 patent:
1. 5896926 - Packer type groundwater sampling system and water sampling method