Assignee
- Japan Oil, Gas And Metals National
- Sekiyushigen Kaihatsu Kabushiki Kaisha
- Cosmo Oil Co.
- Chiyoda
- Nippon Steel
- Inpex
Inventors
- Masaru Ihara (14 patents)
- Yoshifumi Suehiro (3 patents)
- Yasumasa Morita (10 patents)
- Kiyoshi Inaba (5 patents)
- Toshio Shimizu (68 patents)
- Osamu Iwamoto (27 patents)
- Tomoyuki Mikuriya (7 patents)
- Ryuichiro Kajiyama (3 patents)
- Ken-ichiro Fujimoto (2 patents)
- Yasuhiro Onishi (28 patents)