Assignee
Inventors
- Hideaki Yamamoto (141 patents)
- Haruo Matsumaru (25 patents)
- Tetsuaki Suzuki (21 patents)
- Mitsuo Nakatani (45 patents)
- Michio Tsukii (8 patents)
- Akira Sasano (48 patents)
- Saburo Oikawa (15 patents)
- Ryoji Oritsuki (16 patents)
US Patent 6226059 · Granted May 1, 2001