Assignee
Inventors
- Nobuto Minowa (26 patents)
- Tomoya Machinami (9 patents)
- Seiji Shibahara (43 patents)
- Keiichi Imamura (4 patents)
- Michiaki Iwata (8 patents)
- Masaru Shimura (3 patents)
- Shigeharu Inouye (40 patents)
US Patent 5190952 · Granted Mar 2, 1993