Assignee
Inventors
- Michio Sumiyoshi (7 patents)
- Akira Sasaki (198 patents)
- Hiroyuki Tadokoro (27 patents)
- Takeshi Kato (216 patents)
- Isamu Terashima (31 patents)
- Junichi Matsuno (28 patents)
- Masaru Nakano (51 patents)
US Patent 5602578 · Granted Feb 11, 1997