Assignee
Inventors
- Nobuyasu Tanaka (3 patents)
- Hiroshi Tominaga (50 patents)
- Minoru Fujita (96 patents)
- Hajime Tanaka (55 patents)
- Takahisa Hattori (3 patents)
- Akira Yasuda (90 patents)
- Shigeya Kato (4 patents)
US Patent 4423828 · Granted Jan 3, 1984