Assignee
Inventors
- Yasuaki Kano (17 patents)
- Kazuyuki Hirooka (9 patents)
- Kazuya Koseki (1 patents)
- Takao Hiramoto (12 patents)
- Masahiro Kiyota (1 patents)
- Yoshihisa Takayama (83 patents)
- Mitsunori Sakama (88 patents)
US Patent 6680817 · Granted Jan 20, 2004