Assignee
Inventors
- Akira Yamada (290 patents)
- Isao Ohkouchi (2 patents)
- Yasuo Koseki (21 patents)
- Hideaki Kurokawa (9 patents)
- Katsuya Ebara (20 patents)
- Sankichi Takahashi (28 patents)
- Risuke Onoda (2 patents)
- Shigeo Sugimoto (17 patents)
US Patent 5018367 · Granted May 28, 1991