Assignee
Inventors
- Yasuyuki Sugiura (22 patents)
- Rika Oue (2 patents)
- Kunio Miyashita (68 patents)
- Hiroshi Nagase (51 patents)
- Nobuyoshi Mutoh (29 patents)
- Sumio Kobayashi (23 patents)
- Hiroshi Sugai (22 patents)
US Patent 5019773 · Granted May 28, 1991