Assignee
Inventors
- Hideaki Katayama (35 patents)
- Toshifumi Murakami (15 patents)
- Akira Hasegawa (259 patents)
- Katsuyoshi Sakaguchi (17 patents)
- Koji Soeda (11 patents)
- Yoshiya Kubota (7 patents)
- Akinori Kubota (25 patents)
- Masaaki Ijiri (15 patents)
US Patent 5290503 · Granted Mar 1, 1994