Assignee
Inventors
- Hiroo Matsuda (9 patents)
- Takashi Fukuda (134 patents)
- Shinji Yamada (114 patents)
- Tatsumi Kimura (20 patents)
- Masao Kato (211 patents)
- Xuan-ming Duan (1 patents)
- Shuji Okada (12 patents)
- Hachiro Nakanishi (12 patents)
US Patent 6013748 · Granted Jan 11, 2000