Assignee
Inventors
- Yoshikazu Koshiba (6 patents)
- Yukio Aoki (29 patents)
- Tsuyoshi Minakata (4 patents)
- Michio Inamura (1 patents)
- Tomohiro Yasunaga (1 patents)
- Fujiya Imoto (1 patents)
- Junichi Nakagawa (101 patents)
US Patent 5557847 · Granted Sep 24, 1996