Assignee
Inventors
- Masato Yoshino (68 patents)
- Yoshikazu Ishikawa (64 patents)
- Kazuo Oyama (7 patents)
- Sukeo Tamura (1 patents)
- Takahito Okubo (1 patents)
- Saiji Nozaki (11 patents)
- Toshihiro Tanaka (157 patents)
US Patent 6305876 · Granted Oct 23, 2001