Assignee
Inventors
- Takashi Ohashi (71 patents)
- Toru Okuyama (11 patents)
- Katsuhiko Arai (22 patents)
- Akira Suzuki (768 patents)
- Minoru Kojima (10 patents)
- Yoshiko Taniguchi (3 patents)
- Masako Yoshida (29 patents)
- Ryozo Sakata (3 patents)
US Patent 4189541 · Granted Feb 19, 1980