Assignee
Inventors
- Hiroshi Mabuchi (14 patents)
- Toshihiro Hayami (30 patents)
- Hideo Ida (2 patents)
- Tomomi Murakami (30 patents)
- Naohiko Takeda (2 patents)
- Junya Tsuyuguchi (2 patents)
- Katsuo Katayama (9 patents)
US Patent 5951887 · Granted Sep 14, 1999