Assignee
Inventors
- Masao Fukushima (23 patents)
- Kei Murakami (8 patents)
- Shigeru Kuriyama (11 patents)
- Yozo Nakamura (38 patents)
- Yuji Maeda (46 patents)
- Kenichi Nakamura (177 patents)
- Keiichi Mashino (46 patents)
- Yuzo Kadomukai (76 patents)
US Patent 5083038 · Granted Jan 21, 1992