Assignee
Inventors
- Masanori Kochi (5 patents)
- Akihiro Nakajima (13 patents)
- Yoshio Uemura (3 patents)
- Toshihiko Imachi (3 patents)
- Kuniaki Hirayama (7 patents)
- Eijiro Tazawa (2 patents)
- Kiyokazu Watanabe (15 patents)
US Patent 5661622 · Granted Aug 26, 1997