Assignee
Inventors
- Kaoru Katayama (26 patents)
- Hiroshi Fukuda (261 patents)
- Shinichi Kazui (34 patents)
- Toshihiko Ohta (38 patents)
- Yasuhiro Iwata (36 patents)
- Mitsugu Shirai (18 patents)
- Mitsunori Tamura (8 patents)
US Patent 6161748 · Granted Dec 19, 2000