Assignee
Inventors
- Kiyoshi Yamaki (32 patents)
- Masanori Mizote (16 patents)
- Hitoshi Takeda (185 patents)
- Hidetaka Suzuki (23 patents)
- Hiroyuki Nomura (41 patents)
- Teruo Kawasaki (19 patents)
- Kazuyuki Mori (81 patents)
US Patent 4371940 · Granted Feb 1, 1983