Assignee
Inventors
- Masatoshi Baba (23 patents)
- Takuya Kakuta (14 patents)
- Norio Tanaka (108 patents)
- Eiichi Oya (19 patents)
- Takashi Ikai (12 patents)
- Tsutomu Nawamaki (46 patents)
- Shigeomi Watanabe (27 patents)
US Patent 5175299 · Granted Dec 29, 1992