Assignee
Inventors
- Akira Kusunoki (2 patents)
- Jitsuji Otsuki (3 patents)
- Yasuhira Kikuoka (3 patents)
- Tatsunori Okada (21 patents)
- Mitsuie Matsumura (17 patents)
- Toshio Shinoki (12 patents)
- Masahiro Mukai (6 patents)
- Tetsuya Yagi (57 patents)
US Patent 5616431 · Granted Apr 1, 1997