Assignee
Inventors
- Takeo Tanita (15 patents)
- Masateru Yasuhara (19 patents)
- Shozo Kasai (20 patents)
- Yusaku Azuma (31 patents)
- Toshihiro Yamamoto (99 patents)
- Norio Nikaido (12 patents)
- Toshio Tsuda (18 patents)
US Patent 5203661 · Granted Apr 20, 1993