Assignee
Inventors
- Kazutoshi Nagayama (4 patents)
- Tadashi Ashikaga (10 patents)
- Takayuki Mizuno (69 patents)
- Kenji Yamada (406 patents)
- Masato Mori (52 patents)
- Katsuyuki Watanabe (36 patents)
- Isao Matsuda (29 patents)
US Patent 6008616 · Granted Dec 28, 1999