Assignee
Inventors
- Chikao Harada (30 patents)
- Norio Kawamura (21 patents)
- Ryuji Nakashima (1 patents)
- Arihiro Takahashi (1 patents)
- Toshimasa Yamazaki (15 patents)
- Masanobu Yasui (2 patents)
- Tatsushi Kondo (1 patents)
US Patent 5179956 · Granted Jan 19, 1993