Assignee
Inventors
- Tomohisa Sakurai (40 patents)
- Shinji Hatta (30 patents)
- Akira Shiga (39 patents)
- Tsuyoshi Tsukagoshi (16 patents)
- Koji Yasunaga (22 patents)
- Masaru Karasawa (3 patents)
- Hiroyuki Sangu (13 patents)
- Takeaki Nakamura (75 patents)
US Patent 6666875 · Granted Dec 23, 2003