Assignee
Inventors
- Mamoru Sakaki (60 patents)
- Akio Suzuki (233 patents)
- Masayoshi Takahashi (89 patents)
- Yoshinobu Shimomura (6 patents)
- Tatsuo Takeuchi (49 patents)
- Yoshihiro Takada (82 patents)
- Masato Katayama (61 patents)
US Patent 6188850 · Granted Feb 13, 2001