Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7894558 | Receiving circuit for multi-slot receiving provided with circuit for adjusting frequency characteristic of active filter | Koji Takahashi, Satoshi Yamaguchi, Tetsurou Yokota | 2011-02-22 |
| 7553442 | Method of manufacturing an exhaust gas purifying filter | Mikio Ishihara, Hirofumi Yamashita, Hiromi Sano | 2009-06-30 |
| 7204965 | Filter catalyst for purifying exhaust gases | Seiji Okawara, Mikio Ishihara | 2007-04-17 |
| 7101601 | Exhaust gas purifying filter with reinforced peripheral area and method for manufacturing the same | Mikio Ishihara | 2006-09-05 |
| 7048894 | Ceramic filter and catalyst-loaded ceramic filter | Masakazu Tanaka, Tosiharu Kondo, Hiromi Sano | 2006-05-23 |
| 6887826 | Exhaust gas purifying filter and method of manufacturing the same | Mikio Ishihara, Yoshitsugu Ogura | 2005-05-03 |
| 6863705 | Exhaust gas purifying filter and manufacturing method therefor | Mikio Ishihara | 2005-03-08 |
| 6814774 | Exhaust gas purification filter | Mikio Ishihara | 2004-11-09 |
| 6800107 | Exhaust gas purifying filter | Mikio Ishihara, Makoto Saito | 2004-10-05 |
| 6790248 | Exhaust gas purification filter | Mikio Ishihara, Hirohumi Yamashita | 2004-09-14 |
| 6764527 | Honeycomb structure constituted by main and sub honeycomb structures | Mikio Ishihara | 2004-07-20 |
| 6752969 | Honeycomb structural body | Keiji Ito | 2004-06-22 |
| 6696131 | Ceramic honeycomb structure | Takeshi Ueda | 2004-02-24 |
| 5670104 | Method for cutting undried clay material | Yasunao Miura, Kojiro Tokuda | 1997-09-23 |