Assignee
Inventors
- Yoshiji Yamamoto (5 patents)
- Hideo Ishiguro (3 patents)
- Akitada Katou (1 patents)
- Masanobu Gotou (1 patents)
- Jyunji Sugiura (1 patents)
- Yasunobu Hirao (7 patents)
- Akiyoshi Yasunobe (1 patents)
- Masatoshi Niigawa (1 patents)
US Patent 6203293 · Granted Mar 20, 2001