Assignee
Inventors
- Hirohide Tanikawa (71 patents)
- Toshiaki Nakahara (41 patents)
- Keita Nozawa (22 patents)
- Kazuyoshi Hagiwara (64 patents)
- Minoru Shimojo (17 patents)
- Rika Shinba (3 patents)
- Masami Fujimoto (62 patents)
- Tsutomu Onuma (31 patents)
US Patent 6077638 · Granted Jun 20, 2000