Assignee
Inventors
- Roger Lagadec (32 patents)
- Keisuke Sekiguchi (5 patents)
- Hiroyuki Yamauchi (114 patents)
- Masaru Tezuka (10 patents)
- Satoru Tobita (35 patents)
- Yoichiro Sako (552 patents)
- Hiroyuki Hara (126 patents)
US Patent 5257271 · Granted Oct 26, 1993