Assignee
Inventors
- Masao Takatou (3 patents)
- Kazunori Takahashi (100 patents)
- Nobuhiro Hamada (13 patents)
- Tadaaki Kitamura (16 patents)
- Kuniyuki Kikuchi (4 patents)
- Hiroshi Takenaga (39 patents)
- Yasuo Morooka (56 patents)
US Patent 5283573 · Granted Feb 1, 1994