Assignee
Inventors
- Tatsuo Haneishi (15 patents)
- Takao Okazaki (11 patents)
- Akio Torikata (9 patents)
- Mutsuo Nakajima (17 patents)
- Ryuzou Enokita (3 patents)
- Toshiaki Katayama (5 patents)
- Seigo Iwado (10 patents)
US Patent 4557933 · Granted Dec 10, 1985