Assignee
Inventors
- Jun Ito (227 patents)
- Hiroyuki Kumai (8 patents)
- Yasumasa Matsuda (28 patents)
- Akira Nakajima (129 patents)
- Yoshiisa Inoue (5 patents)
- Hiroyuki Koreeda (31 patents)
- Shigeto Oheda (5 patents)
US Patent 5612720 · Granted Mar 18, 1997