Assignee
Inventors
- Yousuke Yanagi (13 patents)
- Takeo Yamazaki (38 patents)
- Atsushi Takagi (55 patents)
- Yuh Yamada (2 patents)
- Uichiro Mizutani (9 patents)
- Yoshitaka Itoh (68 patents)
- Masaaki Yoshikawa (187 patents)
- Tetsuo Oka (28 patents)
US Patent 5981442 · Granted Nov 9, 1999