Assignee
Inventors
- Sumio Yokota (3 patents)
- Masafumi Matsuzawa (10 patents)
- Nobuyuki Ohba (6 patents)
- Toshihiro Nagata (15 patents)
- Shigehiko Tachikawa (11 patents)
- Takeshige Miyazawa (32 patents)
- Katsutada Yanagisawa (6 patents)
US Patent 5616537 · Granted Apr 1, 1997