Assignee
Inventors
- Maomi Seko (9 patents)
- Yasumichi Yamakoshi (1 patents)
- Hirotsugu Miyauchi (13 patents)
- Kyoji Kimoto (16 patents)
- Toshioki Hane (14 patents)
- Mitsunobu Fukumoto (1 patents)
- Itaru Watanabe (27 patents)
- Sakae Tsushima (5 patents)
US Patent 4209367 · Granted Jun 24, 1980