Assignee
Inventors
- Hiroshi Itoh (257 patents)
- Takashi Abe (291 patents)
- Hitoshi Yamashita (4 patents)
- Toshihiro Yoshimura (8 patents)
- Takeshi Hisanaga (2 patents)
- Takao Takebayashi (2 patents)
- Kunio Nakata (3 patents)
- Chikara Hashimoto (19 patents)
US Patent 5653839 · Granted Aug 5, 1997