Assignee
Inventors
- Makoto Kanehira (26 patents)
- Takashi Koizumi (3 patents)
- Takerou Nakagawa (9 patents)
- Kazumasa Matsuno (19 patents)
- Yasumasa Tsubakimoto (6 patents)
- Fumio Ochiai (4 patents)
- Takashi Tsujimoto (26 patents)
US Patent 4724669 · Granted Feb 16, 1988