Assignee
Inventors
- Takeshi Satake (22 patents)
- Tokuji Hayashi (2 patents)
- Masayoshi Hachiwaka (7 patents)
- Masakatsu Kimura (9 patents)
- Koichi Suzuki (307 patents)
- Takeji Akutsu (5 patents)
- Yoshimasa Tsukamoto (2 patents)
- Isao Shirasu (7 patents)
US Patent 5177808 · Granted Jan 5, 1993