Assignee
Inventors
- Masahiko Mutai (16 patents)
- Tsuneo Terashima (4 patents)
- Tokutaro Takahashi (1 patents)
- Ryuichiro Tanaka (5 patents)
- Akio Kuroda (35 patents)
- Sadao Ueyama (1 patents)
- Keisuke Matsumoto (3 patents)
US Patent 4435389 · Granted Mar 6, 1984