Assignee
Inventors
- Hisashi Tanaka (44 patents)
- Yuichi Shirota (26 patents)
- Hiroki Matsuo (22 patents)
- Hikaru Sugi (60 patents)
- Masami Konaka (5 patents)
- Kazushi Yamamoto (22 patents)
- Seiji Miwa (2 patents)
- Tetsuji Nobuta (13 patents)
US Patent 6016662 · Granted Jan 25, 2000