Assignee
Inventors
- Yasumasa Matsuda (28 patents)
- Satoshi Shimada (145 patents)
- Kanji Kawakami (33 patents)
- Motohisa Nishihara (18 patents)
- Taisaku Kohzuma (1 patents)
- Syoji Sagae (9 patents)
- Tetsuo Doi (6 patents)
- Takahiro Yamada (239 patents)
US Patent 4216477 · Granted Aug 5, 1980