Assignee
Inventors
- Yoshitomo Masuda (30 patents)
- Isamu Shinoda (7 patents)
- Masao Ogawa (12 patents)
- Toyoo Harada (11 patents)
- Takao Ogino (46 patents)
- Kazuo Takayama (23 patents)
- Tadaaki Miyazaki (8 patents)
- Takahiro Kawagoe (40 patents)
US Patent 4865932 · Granted Sep 12, 1989