Assignee
Inventors
- Itsuo Takanashi (121 patents)
- Shintaro Nakagaki (122 patents)
- Hiroshi Ichimura (19 patents)
- Ichiro Negishi (32 patents)
- Masaru Osada (11 patents)
- Wataru Katase (5 patents)
- Kaoru Kitami (6 patents)
US Patent 4916528 · Granted Apr 10, 1990