Assignee
Inventors
- Terumi Nakajima (11 patents)
- Yoshio Aramaki (10 patents)
- Tadashi Yasuhara (1 patents)
- Tsutomu Higashijima (2 patents)
- Nobufumi Kawai (4 patents)
- Akiko Miwa (1 patents)
- Masanori Yoshioka (9 patents)
US Patent 5246968 · Granted Sep 21, 1993