Assignee
Inventors
- Shuichi Nakagawa (67 patents)
- Sadao Tamura (1 patents)
- Setsuo Satoh (1 patents)
- Mamoru Sanagi (1 patents)
- Hirosho Otsu (1 patents)
- Shigenobu Miyamoto (4 patents)
- Hiroyuki Takahashi (716 patents)
US Patent 4433338 · Granted Feb 21, 1984