Assignee
Inventors
- Makotoi Iwahara (1 patents)
- Itsuo Takanashi (121 patents)
- Shintaro Nakagaki (122 patents)
- Horosi Ichimura (1 patents)
- Ichiro Negishi (32 patents)
- Masaru Osada (11 patents)
- Wataru Katase (5 patents)
US Patent 4897730 · Granted Jan 30, 1990