Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823310 | Audio signal processing device and audio signal high-rate reproduction method used for audio visual equipment | Tsukuru Ishito, Masaharu Matsumoto, Shuji Miyasaka, Takashi Katayama, Masahiro Sueyoshi +4 more | 2004-11-23 |
| 6819688 | Semiconductor laser device and optical fiber amplifier | Kiyohide Sakai, Yuuhiko Hamada, Yasuaki Yoshida, Kimio Shigihara, Tatsuo Hatta | 2004-11-16 |
| 6767417 | Steel sheet and method for manufacturing the same | Kenichi Mitsuzuka, Nobuyuki Nakamura, Toshiaki Urabe, Katsutoshi Ito, Hideyuki Tsurumaru | 2004-07-27 |
| 6743306 | Steel sheet and method for manufacturing the same | Katsumi Nakajima, Toshiaki Urabe, Yuji Yamasaki, Fusato Kitano | 2004-06-01 |
| 6689229 | High strength cold rolled steel sheet and method for manufacturing the same | Fusato Kitano, Yoshihiro Hosoya, Toru Inazumi, Yuji Yamasaki, Masaya Morita +4 more | 2004-02-10 |