Assignee
Inventors
- Shinpei Yamamoto (9 patents)
- Hideyuki Ohashi (11 patents)
- Tadashi Nakajima (15 patents)
- Nobukazu Kotera (7 patents)
- Takuma Kobayashi (42 patents)
- Hiroshi Taki (17 patents)
- Masami Oka (10 patents)
US Patent 5178952 · Granted Jan 12, 1993