Assignee
Inventors
- Hideharu Mori (9 patents)
- Mamoru Hasegawa (55 patents)
- Masanori Fukui (29 patents)
- Kenji Yasuda (97 patents)
- Keiko Yamada (34 patents)
- Shusaburo Hokukoku (5 patents)
- Tomohiko Ogawa (9 patents)
US Patent 6171805 · Granted Jan 9, 2001