Assignee
Inventors
- Hidefumi Ohtsuka (11 patents)
- Shigeru Obata (21 patents)
- Junichi Matsuno (28 patents)
- Yasuyuki Tsuji (24 patents)
- Shuho Yokokawa (26 patents)
- Isao Nakajima (69 patents)
- Muneyoshi Akai (8 patents)
- Yoji Hirose (14 patents)
US Patent 5774777 · Granted Jun 30, 1998