Assignee
Inventors
- Hiromitsu Matsuno (21 patents)
- Nobuyuki Hishinuma (16 patents)
- Kenichi Hirose (39 patents)
- Kunio Kasagi (4 patents)
- Fumitoshi Takemoto (10 patents)
- Yoshinori Aiura (5 patents)
- Tatsushi Igarashi (22 patents)
US Patent 5757132 · Granted May 26, 1998