Assignee
Inventors
- Itsuo Takanashi (121 patents)
- Hideshi Tanaka (36 patents)
- Hiroki Kitamura (32 patents)
- Toru Nibe (4 patents)
- Tadao Shinya (11 patents)
- Yutaka Mizoguchi (9 patents)
- Katsuhiko Terada (4 patents)
- Toshinori Takahashi (42 patents)
US Patent 5300351 · Granted Apr 5, 1994