Assignee
Inventors
- Hiroki Iwanaga (35 patents)
- Seizaburo Shimizu (10 patents)
- Masaki Okajima (17 patents)
- Masayuki Saito (274 patents)
- Atsushi Sugahara (44 patents)
- Kazuyuki Sunohara (20 patents)
- Aira Hotta (32 patents)
US Patent 5739946 · Granted Apr 14, 1998