Assignee
Inventors
- Hironori Umeda (2 patents)
- Tohru Mashimo (6 patents)
- Kazuo Hironaka (6 patents)
- Tadamitsu Nakahama (23 patents)
- Takakazu Yamane (34 patents)
- Makoto Aizawa (11 patents)
- Yukifumi Taniguchi (2 patents)
US Patent 5976677 · Granted Nov 2, 1999