Assignee
Inventors
- Tatsuo Maeda (52 patents)
- Toshihiro Takamura (7 patents)
- Yoshiichi Ishizawa (4 patents)
- Yuji Sugimoto (55 patents)
- Mitoshi Morimoto (2 patents)
- Tetsuro Sugayoshi (2 patents)
- Fumihiro Nishimura (3 patents)
US Patent 5286309 · Granted Feb 15, 1994