Assignee
Inventors
- Mitsuaki Hirata (49 patents)
- Shigeaki Mizushima (48 patents)
- Kazuyuki Aburazaki (6 patents)
- Noriko Watanabe (78 patents)
- Hiroko Iwagoe (13 patents)
- Seiji Makino (16 patents)
- Tomoko Okamura (5 patents)
US Patent 6013335 · Granted Jan 11, 2000