Assignee
Inventors
- Ryuya Akita (11 patents)
- Shin Takehara (49 patents)
- Hiroshi Ohmura (159 patents)
- Kiyoshi Sakamoto (46 patents)
- Mineharu Shibata (10 patents)
- Shigefumi Hirabayashi (19 patents)
- Seiji Miyamoto (19 patents)
US Patent 5521823 · Granted May 28, 1996