Assignee
- Sakai Chemical Industry Co.
- Mitsubishi Mining
- Mitsubishi Petrochemical Company Limited
- Mitsubishi Petrochemical Engineering Co.
- Catalysts & Chemicals Industries Co.
Inventors
- Hiroaki Rikimaru (5 patents)
- Tadao Nakatsuji (37 patents)
- Toshikatsu Umaba (11 patents)
- Kuzuhiko Nagano (1 patents)
- Kazuya Mishina (3 patents)
- Hiromitsu Shimizu (34 patents)