Assignee
Inventors
- Kazunari Kume (17 patents)
- Churyo Seki (1 patents)
- Kunio Suganuma (4 patents)
- Hiroshi Kurafuji (3 patents)
- Hiroshi Mabuchi (14 patents)
- Hisao Wakabayashi (11 patents)
- Yoshiyuki Ohishi (5 patents)
- Takayasu Machida (11 patents)
US Patent 4750063 · Granted Jun 7, 1988