Assignee
Inventors
- Takashi Iwaki (92 patents)
- Unknown
- Hiroshi Matsumoto (432 patents)
- Kunitoshi Watanabe (10 patents)
- Hiroyuki Suzuki (656 patents)
- Unknown
- Nobuyuki Uematsu (13 patents)
- Mamoru Takeda (74 patents)
US Patent 5067447 · Granted Nov 26, 1991