Assignee
Inventors
- Kenji Yamamoto (585 patents)
- Haruo Nagaoka (19 patents)
- Teiji Katayama (6 patents)
- Masafumi Kume (19 patents)
- Tadayoshi Hiraki (21 patents)
- Eisaku Nakatani (10 patents)
- Yasuyuki Hirata (12 patents)
- Haruhiko Kataoka (1 patents)
US Patent 5254631 · Granted Oct 19, 1993