Assignee
Inventors
- Akira Sasame (15 patents)
- Hitoyuki Sakanoue (11 patents)
- Hisao Takeuchi (35 patents)
- Masaya Miyake (53 patents)
- Akira Yamakawa (100 patents)
- Yasuhisa Yushio (13 patents)
- Hitoshi Akazawa (2 patents)
US Patent 5010388 · Granted Apr 23, 1991