Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6024927 | Particulate trap | Takao Maeda, Hiroshi Yoshino, Tsutomu Ooka | 2000-02-15 |
| 5908480 | Particulate trap for diesel engine | Youichi Nagai, Kiyoshi Kobashi, Hiromichi Yanagihara | 1999-06-01 |
| 5830415 | Filter member for purifying exhaust gas and method for manufacturing the same | Takao Maeda, Masayuki Ishii, Hiroshi Yoshino | 1998-11-03 |
| 5709722 | Particulate trap for diesel engine | Youichi Nagai, Tomohiko Ihara | 1998-01-20 |
| 5643834 | Process for manufacturing a semiconductor substrate comprising laminated copper, silicon oxide and silicon nitride layers | Keizo Harada, Takao Maeda, Takatoshi Takikawa, Shosaku Yamanaka | 1997-07-01 |
| 5455453 | Plastic package type semiconductor device having a rolled metal substrate | Keizo Harada, Takao Maeda, Takatoshi Takikawa, Shosaku Yamanaka | 1995-10-03 |
| 5369220 | Wiring board having laminated wiring patterns | Keizo Harada, Takatoshi Takikawa, Takao Maeda, Shosaku Yamanaka | 1994-11-29 |