Assignee
Inventors
- Masataka Suga (6 patents)
- Makoto Yamada (239 patents)
- Kazuhide Takahashi (37 patents)
- Nobuhiro Iwasaki (1 patents)
- Kazuyuki Matsui (6 patents)
- Toru Izawa (3 patents)
- Itaru Watanabe (27 patents)
- Hisatoshi Tagawa (7 patents)
US Patent 4572748 · Granted Feb 25, 1986