Assignee
Inventors
- Masaji Yukawa (1 patents)
- Masahiro Aketa (24 patents)
- Kazutoshi Okamoto (7 patents)
- Yasukazu Kamada (1 patents)
- Akira Hayatani (1 patents)
- Masahiko Sugimoto (134 patents)
- Nobuhiro Yamamoto (41 patents)
US Patent 5669339 · Granted Sep 23, 1997