Assignee
Inventors
- Naruhito Masai (3 patents)
- Masao Enomoto (6 patents)
- Atsuyuki Kojima (16 patents)
- Hiroaki Masumori (5 patents)
- Nobuyuki Hara (29 patents)
- Youichi Hara (3 patents)
- Shigeaki Morooka (4 patents)
US Patent 5021435 · Granted Jun 4, 1991