Assignee
Inventors
- Hironao Numoto (19 patents)
- Kanji Haneda (8 patents)
- Akira Fujitaka (19 patents)
- Shigehiro Sato (27 patents)
- Yukio Watanabe (113 patents)
- Yuichi Yakumaru (11 patents)
- Yoshinori Kobayashi (114 patents)
US Patent 6216476 · Granted Apr 17, 2001