Assignee
Inventors
- Tadashi Iwamoto (28 patents)
- Toshiki Ikeda (10 patents)
- Kazuo Yukitomo (5 patents)
- Masaichi Hattori (20 patents)
- Kaneyasu Arakawa (6 patents)
- Koichi Kihira (2 patents)
- Akira Hanaki (8 patents)
US Patent 4683403 · Granted Jul 28, 1987