This inventor holds 2 USPTO granted patents. Top assignee: N.e. Chemcat Corporation. Active years: 1994-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ichikawa, JP (1994)
- Kamagaya, JP (1999)
Company Filing History:
Years Active: 1994-1999
Title: Kazuhiko Shiokawa: Innovator in Exhaust Gas Purification
Introduction
Kazuhiko Shiokawa is a notable inventor based in Ichikawa, Japan. He has made significant contributions to the field of exhaust gas purification, holding a total of 2 patents. His work focuses on developing methods and catalysts that enhance the efficiency of internal combustion engines.
Latest Patents
Shiokawa's latest patents include a method of purifying exhaust gas from internal combustion engines. This innovative method involves bringing exhaust gas, operated at a fuel-lean air/fuel ratio, into contact with an iridium-containing catalyst in a first zone, followed by a platinum-containing catalyst in a second zone downstream. This approach effectively purifies exhaust gas over a wide temperature range of 200 to 500 degrees Celsius, producing less N2O at lower temperatures and maintaining stability even at high temperatures exceeding 700 degrees Celsius. Another significant patent is a catalyst for purifying exhaust gas, which comprises a zeolite carrier with a specific mole ratio of SiO2/Al2O3 and a compound oxide of copper and silicon. This catalyst demonstrates high activity in eliminating nitrogen oxides (NOx) in the presence of oxygen and water vapor, making it highly effective for use in automobiles and boilers.
Career Highlights
Kazuhiko Shiokawa is currently associated with N.E. Chemcat Corporation, where he continues to innovate in the field of exhaust gas purification. His work has been instrumental in advancing technologies that contribute to cleaner air and more efficient engine performance.
Collaborations
Shiokawa has collaborated with notable colleagues, including Takashi Itoh and Yukio Kosaki, to further enhance the development of his innovative technologies.
Conclusion
Kazuhiko Shiokawa's contributions to exhaust gas purification reflect his commitment to innovation and environmental sustainability. His patents and ongoing work at N.E. Chemcat Corporation position him as a key figure in the advancement of cleaner combustion technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile