Assignee
Inventors
- Masaru Yamano (19 patents)
- Atsuo Mizukami (4 patents)
- Masao Nakao (8 patents)
- Shingo Terakado (4 patents)
- Ryohkan Yuasa (4 patents)
- Masaaki Nemoto (19 patents)
- Hiromi Mukaida (1 patents)
- Kazuaki Shikiti (1 patents)
US Patent 5122503 · Granted Jun 16, 1992