Assignee
Inventors
- Shigeru Maruyama (61 patents)
- Yuichi Shimasaki (78 patents)
- Masaki Kanehiro (36 patents)
- Takashi Hisaki (27 patents)
- Shigeki Baba (29 patents)
- Takuji Ishioka (29 patents)
- Jiro Takagi (23 patents)
- Eitetsu Akiyama (26 patents)
US Patent 5487676 · Granted Jan 30, 1996