Assignee
- Japan Oil, Gas And Metals National
- Inpex
- Nippon Oil
- Japan Petroleum Exploration Co.
- Cosmo Oil Co.
- Nippon Steel Engineering Co.
Inventors
- Shigenori Nakashizu (9 patents)
- Yutaka Miyata (21 patents)
- Kazuhito Sato (23 patents)
US Patent 8906222 · Granted Dec 9, 2014