Assignee
Inventors
- Masayuki Toriyama (22 patents)
- Kenji Tamaki (83 patents)
- Satoshi Honda (75 patents)
- Shoji Motodate (16 patents)
- Yoshihiro Nakazawa (26 patents)
- Takaaki Fujii (36 patents)
- Shigemi Sasaki (10 patents)
US Patent 5644202 · Granted Jul 1, 1997