Assignee
Inventors
- Kazuo Yamakido (22 patents)
- Yoichiro Kobayashi (30 patents)
- Masanori Otsuka (26 patents)
- Takao Okazaki (11 patents)
- Yukihito Ishihara (8 patents)
- Norimitsu Nishikawa (4 patents)
- Yuko Tamba (6 patents)
US Patent 5515047 · Granted May 7, 1996