Assignee
Inventors
- Masaru Tateyama (15 patents)
- Kazufumi Matsui (4 patents)
- Sachio Shimizu (8 patents)
- Kazuya Ohno (1 patents)
- Norio Shimasaki (4 patents)
- Atsushi Ishio (10 patents)
- Kazuhiko Kobayashi (195 patents)
US Patent 6485806 · Granted Nov 26, 2002