Assignee
Inventors
- Koji Akiyama (86 patents)
- Satoshi Yoshitake (10 patents)
- Minoru Takeuchi (32 patents)
- Hiroshi Shimizu (386 patents)
- Kazuo Nagata (19 patents)
- Kiyoshi Takai (15 patents)
- Toshio Sekiguchi (4 patents)
US Patent 5745049 · Granted Apr 28, 1998