Assignee
Inventors
- Kanji Wakabayashi (49 patents)
- Hitoshi Fujii (41 patents)
- Hiroshi Yamamoto (819 patents)
- Masanari Mohri (25 patents)
- Takayuki Kojima (12 patents)
- Daisaburo Kubota (2 patents)
- Kenichiro Urairi (6 patents)
US Patent 6747921 · Granted Jun 8, 2004