Assignee
Inventors
- Masahiro Yasumi (16 patents)
- Ichirou Matsuo (4 patents)
- Toshiki Yabu (34 patents)
- Mizuki Segawa (46 patents)
- Kunitoshi Aono (13 patents)
- Akihiko Ohtani (12 patents)
- Takayuki Minemaru (3 patents)
- Tadashi Fukumoto (14 patents)
US Patent 6570231 · Granted May 27, 2003