Assignee
Inventors
- Katsumi Ishii (57 patents)
- Takanobu Asano (19 patents)
- Masaharu Abe (20 patents)
- Kenichi Yamaga (38 patents)
- Kazunari Sakata (15 patents)
- Takashi Tanahashi (16 patents)
- Syuji Moriya (3 patents)
US Patent 5261935 · Granted Nov 16, 1993