Assignee
Inventors
- Ryuji Okamoto (1 patents)
- Tetsuji Sato (26 patents)
- Kazumi Umeki (2 patents)
- Takeshi Takahashi (259 patents)
- Naoyuki Tsuzuki (6 patents)
- Shunsuke Yasunishi (1 patents)
- Koji Kitano (11 patents)
- Takashi Yamamoto (694 patents)
US Patent 5767396 · Granted Jun 16, 1998