Assignee
Inventors
- Kenjiro Narita (14 patents)
- Ken Yasuda (17 patents)
- Yukio Hirama (13 patents)
- Kouji Satou (33 patents)
- Ken-ichi Yoshimoto (1 patents)
- Tadashi Nishino (27 patents)
- Shinichi Kaga (28 patents)
- Yasutsugu Yoshimura (29 patents)
US Patent 5632177 · Granted May 27, 1997