Assignee
Inventors
- Takao Kume (38 patents)
- Norio Hashimoto (29 patents)
- Katsuhiko Nishimura (30 patents)
- Koichi Hiroshima (32 patents)
- Tooru Saitou (5 patents)
- Katsunori Takeuchi (4 patents)
- Yozo Hotta (15 patents)
- Masahiro Suzuki (397 patents)
US Patent 6131010 · Granted Oct 10, 2000