Assignee
Inventors
- Eiji Tanaka (73 patents)
- Hisao Urata (14 patents)
- Toshiyuki Oshiki (7 patents)
- Takayuki Aoshima (35 patents)
- Riichirou Kawashima (1 patents)
- Shinji Iwade (4 patents)
- Unknown
- Syunji Katsuki (1 patents)
- Takeshi Okano (29 patents)
US Patent 5750817 · Granted May 12, 1998