Assignee
Inventors
- Osamu Ishikawa (100 patents)
- Takahiro Yokoyama (47 patents)
- Taketo Kunihisa (11 patents)
- Masaaki Nishijima (18 patents)
- Shinji Yamamoto (366 patents)
- Junji Itoh (25 patents)
- Toshio Fujiwara (34 patents)
- Kaoru Muramatsu (3 patents)
US Patent 6046501 · Granted Apr 4, 2000