Assignee
Inventors
- Tomohiko Taniguchi (52 patents)
- Kohei Iseda (19 patents)
- Koji Okazaki (56 patents)
- Fumio Amano (19 patents)
- Shigeyuki Unagami (19 patents)
- Yoshinori Tanaka (544 patents)
- Yasuji Ohta (12 patents)
US Patent 5115469 · Granted May 19, 1992