Assignee
Inventors
- Tsuneo Yamane (10 patents)
- Shunsaku Ueda (1 patents)
- Shigeki Imagawa (4 patents)
- Torakazu Tahara (3 patents)
- Yoshiharu Tokunaga (1 patents)
- Hiroyuki Iesaka (1 patents)
- Teizi Urakami (11 patents)
US Patent 5200332 · Granted Apr 6, 1993