Assignee
Inventors
- Hidenori Umeno (17 patents)
- Takashige Kubo (11 patents)
- Nobutaka Hagiwara (4 patents)
- Hiroaki Sato (214 patents)
- Hideo Sawamoto (26 patents)
- Taro Inoue (23 patents)
- Shunji Tanaka (62 patents)
US Patent 5392409 · Granted Feb 21, 1995