Assignee
Inventors
- Kiyoshi Takatsuki (4 patents)
- Yohsuke Maeda (1 patents)
- Toshio Hattori (11 patents)
- Tsutomu Kaizu (3 patents)
- Masanori Okamoto (18 patents)
- Yoshiko Yokota (6 patents)
- Katsuya Nakamura (41 patents)
- Hiroshi Kayakiri (40 patents)
US Patent 5098927 · Granted Mar 24, 1992