Assignee
Inventors
- Toshiyasu Ito (105 patents)
- Jun Minoura (8 patents)
- Takaaki Mori (21 patents)
- Shigeyuki Takahashi (33 patents)
- Mamoru Kato (41 patents)
- Junichi Shimada (75 patents)
- Fujio Hayakawa (2 patents)
US Patent 4933050 · Granted Jun 12, 1990