Assignee
Inventors
- Tamotsu Ueyama (5 patents)
- Yukihiko Wada (10 patents)
- Masaji Homma (2 patents)
- Hitoshi Aisawa (1 patents)
- Takayoshi Komatsu (1 patents)
- Tatsuhisa Shibata (1 patents)
- Hiroharu Kamiyama (4 patents)
US Patent 4268614 · Granted May 19, 1981