Assignee
Inventors
- Tetsuya Shimizu (139 patents)
- Makoto Shimokoriyama (34 patents)
- Mitsugu Tanaka (43 patents)
- Katsumi Karasawa (26 patents)
- Yoshiki Ishii (46 patents)
- Yasuyuki Tanaka (201 patents)
- Hidenori Hoshi (31 patents)
US Patent 5930453 · Granted Jul 27, 1999