Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637977 | Compressed gas storage tank utilizing rock-bed cavity | Masao Hayashi | 2003-10-28 |
| 6578382 | Synthetic quartz glass for optical use, heat treatment method and heat treatment apparatus for the same | Tetsuji Ueda, Akira Fujinoki | 2003-06-17 |
| 6543696 | Portable information terminal | — | 2003-04-08 |
| 6508084 | Method for producing optical quartz glass for excimer lasers and vertical-type heating furnace | Toru Yokota, Akira Fujinoki | 2003-01-21 |