Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481217 | Gas storage method and system, and gas occluding material | Toshihiro Okazaki, Takuya Kondo | 2002-11-19 |
| 6347838 | Method for replacing cutters of tunnel-excavating machine, method for excavating tunnel, and tunnel excavating machine | Tsunematsu Mukaidani | 2002-02-19 |