Assignee
Inventors
- Katsuki Matsudera (18 patents)
- Kazuhide Yoneya (15 patents)
- Toshiki Hisada (33 patents)
- Masaru Koyanagi (137 patents)
- Natsuki Kushiyama (27 patents)
- Kaoru Nakagawa (16 patents)
- Takahiko Hara (36 patents)
US Patent 6198649 · Granted Mar 6, 2001