Assignee
Inventors
- Mutuo Nakagawa (2 patents)
- Yasuo Nakagawa (36 patents)
- Masaaki Nishida (3 patents)
- Jun Hosokawa (3 patents)
- Masashi Nishiyama (56 patents)
- Takamasa Kubo (3 patents)
- Kazutoshi Yoshihara (5 patents)
US Patent 5308663 · Granted May 3, 1994