Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602477 | Metal honeycomb structure | Yasushi Sakamoto | 2003-08-05 |
| 5380501 | Exhaust gas cleaning device | Yuzo Hitachi | 1995-01-10 |
| 5374402 | Metal-made honeycomb carrier body | Yuzo Hitachi | 1994-12-20 |
| 5346675 | Exhaust gas cleaning apparatus | Masayoshi Usui | 1994-09-13 |
| 5177960 | Metal-made carrier body for exhaust gas | Yuzo Hitachi | 1993-01-12 |
| 5163291 | Metal-made carrier body for exhaust gas cleaning catalyst | Yuzo Hitachi | 1992-11-17 |
| 5137696 | Exhaust gas cleaning device | Yuzo Hitachi | 1992-08-11 |
| 5130100 | Exhaust gas cleaning device | — | 1992-07-14 |
| 5118477 | Exhaust gas cleaning device | Kazunori Takikawa | 1992-06-02 |
| 5113653 | Exhaust gas cleaning apparatus | Masayoshi Usui | 1992-05-19 |
| 5110690 | Substantially flat and thin steel band | Masayoshi Usui | 1992-05-05 |
| 5110561 | Exhaust gas cleaning device | Yuzo Hitachi | 1992-05-05 |
| 5104627 | Exhaust gas cleaning apparatus | Masayoshi Usui | 1992-04-14 |
| 5094821 | Exhaust gas cleaning device | Yuzo Hitachi | 1992-03-10 |
| 5049206 | Metal-made carrier body for exhaust gas cleaning catalyst and production of the carrier body | Masayoshi Usui | 1991-09-17 |
| 5026611 | Metal-made carrier body for exhaust gas cleaning catalyst and production of the carrier body | Masayoshi Usui | 1991-06-25 |
| 4988483 | Exhaust gas cleaning apparatus | Masayoshi Usui | 1991-01-29 |
| 4976103 | Metal-made carrier body for carrying thereon exhaust gas cleaning catalyst | Kazunori Takikawa | 1990-12-11 |
| 4948774 | Metal-made carrier body for carrying thereon exhaust gas cleaning catalyst | Masayoshi Usui | 1990-08-14 |
| 4857413 | Metal-made carrier body for exhaust gas cleaning catalyst | Yasuaki Hashimoto | 1989-08-15 |
| 4857500 | Method for manufacturing the metallic carrier base material for maintaining a catalyst for exhaust gas purification | Yuzo Hitachi | 1989-08-15 |