Assignee
Inventors
- Hiroaki Tsutsui (22 patents)
- Takao Matsumura (3 patents)
- Hirokazu Oikawa (7 patents)
- Masayuki Yokoi (6 patents)
- Junichi Nakamura (245 patents)
- Hiroyuki Sato (323 patents)
- Jun Mizoe (1 patents)
US Patent 5922623 · Granted Jul 13, 1999