Assignee
Inventors
- Kenji Takeshige (3 patents)
- Kenji Hirabe (6 patents)
- Yukifumi Ogawa (2 patents)
- Kazuyoshi Arikata (3 patents)
- Kazunori Yako (5 patents)
- Kenichi Sakai (49 patents)
- Toshinori Matsuo (1 patents)
- Hiroshi Kamio (22 patents)
US Patent 4440584 · Granted Apr 3, 1984