Assignee
Inventors
- Shuumi Kumagai (4 patents)
- Kouzou Sasaki (7 patents)
- Makoto Kobayashi (548 patents)
- Noriyuki Saito (36 patents)
- Hisayuki Abe (47 patents)
- Toru Takahashi (508 patents)
- Kenji Shibata (132 patents)
US Patent 6147573 · Granted Nov 14, 2000