Assignee
Inventors
- Masayuki Nonaka (11 patents)
- Hiroaki Matsushima (21 patents)
- Kazuhiro Endoh (10 patents)
- Kensaku Oguni (30 patents)
- Kazumoto Urata (25 patents)
- Kyuhei Ishibane (6 patents)
- Takeshi Endoh (19 patents)
US Patent 5768902 · Granted Jun 23, 1998