Assignee
Inventors
- Katsuki Suematsu (25 patents)
- Masato Shiino (15 patents)
- Masao Shinoda (18 patents)
- Koichi Maeno (8 patents)
- Masaaki Takaya (17 patents)
- Shinji Nagasawa (39 patents)
- Kouji Shibata (20 patents)
US Patent 6634800 · Granted Oct 21, 2003