Assignee
Inventors
- Hiroshi Sakai (256 patents)
- Tetsuya Nishino (29 patents)
- Yukihiro Oi (3 patents)
- Yoshio Shirai (6 patents)
- Masahiro Inoue (211 patents)
- Masaru Sato (114 patents)
- Yoshio Morita (33 patents)
- Shigeaki Nakamura (11 patents)
US Patent 5917611 · Granted Jun 29, 1999