Assignee
Inventors
- Masanobu Takeuchi (22 patents)
- Hiroe Suzuki (3 patents)
- Toshie Takahashi (9 patents)
- Hiroki Maruyama (26 patents)
- Miyako Sasaki (2 patents)
- Keiko Naito (1 patents)
- Touru Oguma (7 patents)
- Makoto Maeda (51 patents)
US Patent 5756552 · Granted May 26, 1998