Assignee
Inventors
- Hirofumi Sano (5 patents)
- Tomoyuki Sano (12 patents)
- Mitsuro Mayahara (2 patents)
- Yoshinori Hitomi (14 patents)
- Akira Shimizu (261 patents)
- Yusuke ANDO (22 patents)
- Hiroshi Sumura (1 patents)
US Patent 5840423 · Granted Nov 24, 1998