Assignee
Inventors
- Hiroshi Kurihara (9 patents)
- Hiromi Watanabe (2 patents)
- Masao Koyama (15 patents)
- Masaji Sezaki (18 patents)
- Tsutomu Tsuruoka (5 patents)
- Harumi Fukuyasu (7 patents)
- Haruo Yamamoto (11 patents)
US Patent 5210097 · Granted May 11, 1993