Assignee
Inventors
- Norio Matsuda (44 patents)
- Takashi Suzuki (1,317 patents)
- Kazushige Kawana (8 patents)
- Hitoshi Yamazaki (67 patents)
- Yuichi Kimikawa (11 patents)
- Masakazu Takahashi (48 patents)
- Kenichi Takahashi (293 patents)
US Patent 6091680 · Granted Jul 18, 2000