Assignee
Inventors
- Tamihei Hiramatsu (8 patents)
- Taiji Kitami (2 patents)
- Tetsuzo Kano (2 patents)
- Akira Masuda (72 patents)
- Yoshiko Matsushita (2 patents)
- Ryuji Suzuki (70 patents)
- Shigeki Wakatani (5 patents)
- Isao Matsumoto (90 patents)
US Patent 4786255 · Granted Nov 22, 1988