Assignee
Inventors
- Takahiro Kawai (15 patents)
- Atsushi Maruyama (99 patents)
- Hiroshi Sano (96 patents)
- Mineo Mukai (2 patents)
- Masataka Okushita (30 patents)
- Hiroshi Miyama (44 patents)
- Yasuyuki Sasaki (14 patents)
US Patent 6024150 · Granted Feb 15, 2000