Assignee
Inventors
- Nobuyuki Matsui (86 patents)
- Kazunobu Abe (19 patents)
- Makoto Kayo (1 patents)
- Osamu Sakaguchi (21 patents)
- Itsuko Sakaguchi, legal representative (1 patents)
- Yasuharu Kiso (1 patents)
- Masaya Hiraoka (1 patents)
US Patent 5272883 · Granted Dec 28, 1993