Assignee
Inventors
- Hideki Aruga (10 patents)
- Masao Kawai (35 patents)
- Mitsugi Yamashita (8 patents)
- Takahiro Iwami (3 patents)
- Hideki Nakashima (8 patents)
- Shuzo Moroto (60 patents)
- Hisanori Shirai (6 patents)
US Patent 6278928 · Granted Aug 21, 2001