Assignee
Inventors
- Shigeru Nishimoto (3 patents)
- Akio Nakao (9 patents)
- Yasuji Ikeda (2 patents)
- Hiroyuki Nate (2 patents)
- Hironori Hayashi (2 patents)
- Tamotsu Okuno (1 patents)
- Masashi Kitano (11 patents)
- Sadao Maeda (14 patents)
US Patent 5128469 · Granted Jul 7, 1992