Assignee
Inventors
- Hiroyuki Uramachi (37 patents)
- Fumiyoshi Yonezawa (18 patents)
- Naruki Suetake (18 patents)
- Ryuji Tohyama (3 patents)
- Tomoya Yamakawa (36 patents)
- Shingo Hamada (54 patents)
- Takeharu Oshima (11 patents)
US Patent 6561021 · Granted May 13, 2003