Assignee
Inventors
- Tomoyuki Ogura (15 patents)
- Hiroshi Murakami (27 patents)
- Rika Miyachi (7 patents)
- Takeshi Nagaoka (10 patents)
- Toshiro Miyake (13 patents)
- Norihiko Mimori (7 patents)
- Shinji Takii (10 patents)
- Youichi Inoue (1 patents)
US Patent 5891897 · Granted Apr 6, 1999