Assignee
Inventors
- Shunji Kitagawa (9 patents)
- Fumio Kaneko (4 patents)
- Takao Sugano (29 patents)
- Hiroyuki Matsuo (74 patents)
- Masayuki Iwasa (4 patents)
- Mitsuaki Takeguchi (2 patents)
- Masahide Ishigami (3 patents)
- Tamotsu Nishiura (9 patents)
US Patent 6191804 · Granted Feb 20, 2001