Assignee
Inventors
- Kiyoshige Ochi (9 patents)
- Katsuhito Miyamoto (5 patents)
- Hiroki Mitsui (2 patents)
- Yumiko Tsuruma (1 patents)
- Isao Matsunaga (19 patents)
- Takashi Matsuno (5 patents)
- Shigeru Takanashi (5 patents)
- Minoru Shindo (13 patents)
US Patent 4415573 · Granted Nov 15, 1983