Assignee
Inventors
- Kazutomo Imahori (10 patents)
- Tatsuo Iwasaki (4 patents)
- Hiroshi Nakajima (32 patents)
- Hitoshi Kondo (90 patents)
- Isao Tomioka (12 patents)
- Masaru Kashima (1 patents)
- Toshihiko Tsukamoto (1 patents)
US Patent 4554253 · Granted Nov 19, 1985