Issued Patents 2004
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833085 | Agent for restricting elution of phosphorus, method for producing the same, and method of restricting elution of phosphorus in sludge | Kiyoharu Hamasaki, Hironobu Hirasawa | 2004-12-21 |
| 6821707 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information | Mayumi Uno, Katsumi Kawahara, Hiroyuki Ohta, Eiji Ohno, Ken'ichi Nagata | 2004-11-23 |
| 6809401 | Memory, writing apparatus, reading apparatus, writing method, and reading method | Takashi Nishihara, Rie Kojima | 2004-10-26 |
| 6807142 | Optical information recording medium and method for initializing the same | Ken'ichi Nagata, Kenichi Nishiuchi, Katsumi Kawahara | 2004-10-19 |
| 6794006 | Information recording medium and method for producing the same, and method for recording/reproducing information thereon | Takashi Nishihara, Rie Kojima | 2004-09-21 |
| 6768710 | Optical information recording medium, method for producing the same, and method and apparatus for recording information thereon | Hideki Kitaura | 2004-07-27 |
| 6764736 | Optical information recording medium and recording method using the same | Hideki Kitaura | 2004-07-20 |
| 6761950 | Information recording medium and method for producing the same | Rie Kojima, Haruhiko Habuta | 2004-07-13 |
| 6751184 | Information recording medium, method for producing the same, and recording/reproducing method using the same | Rie Kojima, Takashi Nishihara | 2004-06-15 |
| 6744724 | Recording and reproducing method for optical information recording medium and optical information recording medium | Ken'ichi Nagata, Nobuo Akahira, Kenichi Nishiuchi | 2004-06-01 |
| 6743496 | Information recording medium and method for producing the same, and method for recording/reproducing information thereon | Takashi Nishihara, Rie Kojima | 2004-06-01 |
| 6716494 | Transfer sheets | Hideki Nakanishi, Junichi Iida | 2004-04-06 |
| 6689445 | Information recording medium and method of manufacturing the same | Rie Kojima, Takashi Nishihara | 2004-02-10 |