This inventor holds 5 USPTO granted patents and 4 published patent applications and 1 EPO patent. Top assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha, Other. Active years: 1997-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 1,600 
1 out of 38,912 
3 out of 834,513 Years Active: 1997-2012
Title: Naohisa Oyama: Innovator in Environmental Technology
Introduction
Naohisa Oyama is a prominent inventor based in Okazaki, Japan. He has made significant contributions to environmental technology, particularly in the field of particulate matter detection and internal combustion engine diagnostics. With a total of 5 patents, his work reflects a commitment to improving efficiency and reducing emissions in various applications.
Latest Patents
One of Oyama's latest patents is a collection-amount detection method for particulate matters and the corresponding apparatus. This invention includes a filter for collecting particulate matters (PMs), a microwave transmitter that emits electromagnetic waves, and a microwave receiver that detects the intensity of these waves. The computing means calculates the collection amount of PMs based on the detected intensity. This technology allows for accurate detection of PM distribution, enabling a recycling process that minimizes the supply of reducing agents in exhaust gases.
Another notable patent involves a combustible-gas sensor and a diagnostic device for intake-oxygen concentration sensors in internal combustion engines. This invention corrects the fuel injection amount during the purge of evaporative fuel based on outputs from the intake-oxygen concentration sensor. It also detects anomalies in engine output, ensuring optimal performance and efficiency.
Career Highlights
Throughout his career, Naohisa Oyama has worked with various companies, including Nippon Soken, Inc. His innovative approach and technical expertise have positioned him as a key figure in the development of advanced environmental technologies.
Collaborations
Oyama has collaborated with notable professionals in his field, including Shigeki Daido and Fumihiko Sato. These partnerships have contributed to the success of his inventions and the advancement of technology in environmental applications.
Conclusion
Naohisa Oyama's contributions to environmental technology through his patents demonstrate his dedication to innovation and sustainability. His work continues to influence the industry and pave the way for future advancements in reducing emissions and improving efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile