Assignee
Inventors
- Yuzuru Wada (12 patents)
- Shin-ichi Tsuboi (9 patents)
- Yuichi Otsu (19 patents)
- Kunihiro Isono (15 patents)
- Shinzaburo Sone (14 patents)
- Takamasa Maki (2 patents)
- Katsuhiko Hanaki (5 patents)
- Takahisa Abe (10 patents)
US Patent 5707640 · Granted Jan 13, 1998