Assignee
Inventors
- Kazuhiro Matsui (70 patents)
- Akira Sugano (1 patents)
- Ichirou Yoshida (11 patents)
- Yukiharu Nishikawa (1 patents)
- Toshiaki Shiojiri (2 patents)
- Takahisa Awajitani (4 patents)
- Shinsuke Nakahori (8 patents)
- Yuji Morioka (10 patents)
US Patent 4990414 · Granted Feb 5, 1991