Assignee
Inventors
- Yoji Tasaki (9 patents)
- Koichi Kurokawa (6 patents)
- Katsuhide Hattori (13 patents)
- Mikio Takano (22 patents)
- Toshikazu Miyajima (1 patents)
- Toshifumi Sato (84 patents)
- Katsura Ogasawara (1 patents)
US Patent 4898095 · Granted Feb 6, 1990