Assignee
Inventors
- Yutaka Yamada (141 patents)
- Satoru Murase (12 patents)
- Hisashi Yoshino (15 patents)
- Noburu Fukushima (19 patents)
- Hiromi Niu (8 patents)
- Shigeo Nakayama (8 patents)
- Misao Koizumi (3 patents)
US Patent 5935911 · Granted Aug 10, 1999