Assignee
Inventors
- Teijiro Kitao (9 patents)
- Masaru Matsuoka (10 patents)
- Ryotaro Hanawa (13 patents)
- Yasunori Uetani (82 patents)
- Naoki Takeyama (21 patents)
- Takeshi Hioki (20 patents)
- Hiroshi Takagaki (7 patents)
US Patent 5198323 · Granted Mar 30, 1993