Assignee
- Japan Oil, Gas And Metals National
- Inpex
- Nippon Oil
- Japan Petroleum Exploration Co.
- Cosmo Oil Co.
- Nippon Steel Engineering Co.
- Chiyoda
Inventors
- Fuyuki Yagi (15 patents)
- Kenichi Kawazuishi (14 patents)
US Patent 8338495 · Granted Dec 25, 2012