Assignee
Inventors
- Naohiro Takeda (17 patents)
- Yuzo Otani (7 patents)
- Nariaki Okajima (11 patents)
- Yoshihiko Ito (36 patents)
- Shin-ichi Kinoshita (9 patents)
- Masashi Inagaki (16 patents)
- Takashi Harada (292 patents)
US Patent 5188891 · Granted Feb 23, 1993