Assignee
- Sagami Chemical Research Center
- Central Glass Company, Limited
- Hodogaya Chemical Co.
- Nippon Soda Co.
- Nissan Chemical Industries
- Toyo Soda Manufacturing Co.
Inventors
- Yasuo Hibino (26 patents)
- Yasuhisa Asano (25 patents)
- Noriko Okazaki (4 patents)
- Naganori Numao (5 patents)