Assignee
Inventors
- Masayuki Sakamoto (67 patents)
- Kazunori Iwasaki (32 patents)
- Kunihiko Sekiya (5 patents)
- Katsumi Yamagishi (7 patents)
- Toru Tateishi (7 patents)
- Katsumi Murano (6 patents)
- Tomoo Mizuno (5 patents)
US Patent 6047176 · Granted Apr 4, 2000