Assignee
Inventors
- Hisao Matsukura (5 patents)
- Yasuhiko Kudou (3 patents)
- Hajime Hotta (8 patents)
- Akio Hirakawa (2 patents)
- Masaki Sugawara (2 patents)
- Jiro Utsunomiya (2 patents)
- Kiyoshi Kurosawa (13 patents)
US Patent 6087194 · Granted Jul 11, 2000