Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656245 | Catalytic converter for cleaning exhaust gas | Katsuhide Fujisawa, Makoto Tajima | 1997-08-12 |
| 5622372 | Metal seal ring and a method of producing the same | Katsuhide Fujisawa, Shuji Hoshino | 1997-04-22 |
| 5599483 | N-alkylcarbamylalkanol sulfate or salt thereof, process for producing the same and detergent composition containing the same | Hiromoto Mizushima, Akira Yamamuro, Takashi Matsuo, Kazuyuki Yahagi | 1997-02-04 |