Assignee
Inventors
- Jun Oida (9 patents)
- Naohisa Suzuki (28 patents)
- Koji Fukunaga (36 patents)
- Masaki Nishiyama (23 patents)
- Tsutomu Takahashi (178 patents)
- Jiro Tateyama (31 patents)
- Hisatsugu Naito (13 patents)
US Patent 5581668 · Granted Dec 3, 1996