Assignee
Inventors
- Nobuo Fujiwara (22 patents)
- Takahiro Maruyama (55 patents)
- Shigenori Sakamori (10 patents)
- Akemi Teratani (3 patents)
- Satoshi Ogino (7 patents)
- Kazuyuki Ohmi (6 patents)
- Yuzo Irie (1 patents)
US Patent 6232209 · Granted May 15, 2001