Assignee
Inventors
- Tatsuji Higuchi (20 patents)
- Kazuo Yamamoto (225 patents)
- Hitoshi Shirai (9 patents)
- Yasuo Yamazaki (60 patents)
- Yuichi Torikoshi (10 patents)
- Kazuyuki Iwasa (24 patents)
- Toshifumi Nakano (20 patents)
US Patent 4945372 · Granted Jul 31, 1990