Assignee
Inventors
- Takao Shinsha (3 patents)
- Masato Morita (8 patents)
- Yoshinori Sakataya (2 patents)
- Yoji Tsuchiya (1 patents)
- Mitsuhiro Hikosaka (1 patents)
- Junji Koshishita (2 patents)
- Keiho Akiyama (2 patents)
- Takashige Kubo (11 patents)
US Patent 4882690 · Granted Nov 21, 1989