Assignee
Inventors
- Tsuneo Harada (15 patents)
- Yukio Kunisawa (3 patents)
- Kiyotaka Oyama (26 patents)
- Johanna Christina Maria Smeets (2 patents)
- Shuya Takasuga (1 patents)
- Wilhelmus J. J. Van Den Tweel (4 patents)
US Patent 5739023 · Granted Apr 14, 1998