Assignee
Inventors
- Yoji Sugiura (22 patents)
- Hironori Yamamoto (59 patents)
- Keijiro Nishida (3 patents)
- Naoki Shirai (8 patents)
- Kimio Takahashi (42 patents)
- Mikio Nakasugi (26 patents)
- Norihisa Saito (14 patents)
US Patent 4556285 · Granted Dec 3, 1985