Assignee
Inventors
- Kenji Fukumoto (3 patents)
- Shinkichi Kohno (2 patents)
- Kaneo Kanoh (3 patents)
- Tohru Asari (3 patents)
- Hiroshi Kawashima (147 patents)
- Hirokatsu Sekiya (3 patents)
- Kazunori Ohmizo (2 patents)
- Takeo Harada (7 patents)
US Patent 6358957 · Granted Mar 19, 2002