Assignee
Inventors
- Shigeharu Hashimoto (21 patents)
- Tadato Ito (16 patents)
- Yuichi Shimasaki (78 patents)
- Hiroaki Kato (180 patents)
- Takashi Komatsuda (27 patents)
- Akihisa Saito (38 patents)
- Takuya Aoki (52 patents)
- Tetsu Teshirogi (15 patents)
US Patent 6031213 · Granted Feb 29, 2000