Assignee
Inventors
- Fumio Tanaka (21 patents)
- Toshio Akagi (11 patents)
- Shuji Naito (8 patents)
- Sumitada Kakimoto (2 patents)
- Michiaki Sakakibara (1 patents)
- Masahiro Ito (290 patents)
- Akihiro Senda (1 patents)
US Patent 5911327 · Granted Jun 15, 1999