Assignee
Inventors
- Youji Idei (20 patents)
- Hiroaki Nambu (36 patents)
- Kazuo Kanetani (30 patents)
- Toru Masuda (41 patents)
- Kunihiko Yamaguchi (21 patents)
- Kenichi Ohhata (13 patents)
- Takeshi Kusunoki (21 patents)
US Patent 5523966 · Granted Jun 4, 1996