Assignee
Inventors
- Kenichi Ishibashi (41 patents)
- Takehisa Hayashi (49 patents)
- Tsutomu Goto (17 patents)
- Akira Yamagiwa (57 patents)
- Toshitsugu Takekuma (29 patents)
- Toshiro Takahashi (68 patents)
- Tatsuhiro Aida (2 patents)
US Patent 5872471 · Granted Feb 16, 1999