Assignee
Inventors
- Masaki Takase (33 patents)
- Toshio Mamiya (43 patents)
- Katsuji Akimoto (6 patents)
- Akihiro Uetake (23 patents)
- Katsuaki Ikema (4 patents)
- Kazuyoshi Suzuki (74 patents)
- Katsunori Takahashi (112 patents)
US Patent 5822149 · Granted Oct 13, 1998