Assignee
Inventors
- Hiromi Inaba (43 patents)
- Hajime Nakashima (12 patents)
- Hisakatsu Kiwaki (6 patents)
- Akiteru Ueda (10 patents)
- Takeki Ando (13 patents)
- Toshiaki Kurosawa (12 patents)
- Yoshio Sakai (111 patents)
US Patent 4629034 · Granted Dec 16, 1986