Assignee
Inventors
- Masaaki Numata (17 patents)
- Mamoru Sugimoto (26 patents)
- Shuji Fujita (11 patents)
- Masanori Kobayashiu (1 patents)
- Kenkichi Tomita (6 patents)
- Makoto Tanaka (13 patents)
- Tomoya Ogawa (29 patents)
US Patent 5264567 · Granted Nov 23, 1993