Assignee
Inventors
- Akihiko Ohtani (12 patents)
- Yoshifumi Matsumoto (9 patents)
- Akira Sota (2 patents)
- Katsuji Aoki (31 patents)
- Hisato Yoshida (5 patents)
- Masahiro Gion (16 patents)
- Atsushi Ubukata (8 patents)
US Patent 5929939 · Granted Jul 27, 1999