Assignee
Inventors
- Toshinobu Sekihara (3 patents)
- Mitsunori Yokomakura (18 patents)
- Yuichi Moriyama (16 patents)
- Michiaki Watanabe (12 patents)
- Tomohiro Sekiguchi (35 patents)
- Keiji Nagata (23 patents)
- Takatsugu Kurata (11 patents)
US Patent 4955681 · Granted Sep 11, 1990