Assignee
Inventors
- Hiroshi Tanioka (78 patents)
- Kaoru Shoji (3 patents)
- Seiji Kakimoto (5 patents)
- Toshihiko Ohtsubo (8 patents)
- Mitsuru Amimoto (12 patents)
- Mitsuo Shiraishi (33 patents)
- Nobuhiko Watanabe (36 patents)
US Patent 6025858 · Granted Feb 15, 2000