Assignee
Inventors
- Eiju Matsunaga (9 patents)
- Akira Fukushima (72 patents)
- Noriyuki Nakashima (16 patents)
- Toshiyuki Murai (4 patents)
- Shinya Takemoto (4 patents)
- Mikio Tanabe (11 patents)
- Hisashi Kinoshita (9 patents)
US Patent 5444621 · Granted Aug 22, 1995