Assignee
Inventors
- Tetsuo Yamada (128 patents)
- Yoshinori Inoue (88 patents)
- Sinji Miura (2 patents)
- Masao Endo (14 patents)
- Tadahiro Fukunaga (1 patents)
- Yashutoshi Yoshida (2 patents)
- Setsuo Kaneda (2 patents)
US Patent 4843832 · Granted Jul 4, 1989