Assignee
Inventors
- Hiroyuki Kumai (8 patents)
- Jun Ito (227 patents)
- Akira Nakajima (129 patents)
- Yasumasa Matsuda (28 patents)
- Shigeki Taniguchi (16 patents)
- Hirobumi Kashiwa (2 patents)
- Toyokazu Suzuki (4 patents)
- Masaki Kawase (9 patents)
US Patent 5634134 · Granted May 27, 1997