Assignee
Inventors
- Osamu Matsushima (24 patents)
- Yukio Maehashi (29 patents)
- Shigetatsu Katori (9 patents)
- Masahiro Nomura (60 patents)
- Hiroko Shinohara (4 patents)
- Kohichi Kariya (3 patents)
- Mitsue Abe (4 patents)
US Patent 5163150 · Granted Nov 10, 1992