Assignee
Inventors
- Yoshimi Yamamoto (47 patents)
- Yoshitaka Matsuoka (10 patents)
- Syozo Kasai (6 patents)
- Yukio Takahashi (133 patents)
- Takeo Nagata (14 patents)
- Akira Nagasu (10 patents)
- Tomomasa Yoshida (5 patents)
- Satoshi Shimada (145 patents)
US Patent 4342231 · Granted Aug 3, 1982