This inventor holds 2 USPTO granted patents. Top assignees: Senfit Oy, Metso Paper Inc.. Active years: 2009-2012.
Company Filing History:
2 out of 7 
1 out of 571 
Years Active: 2009-2012
Title: Innovations by Jarmo Karhu
Introduction
Jarmo Karhu is an accomplished inventor based in Oulu, Finland. He has made significant contributions to the field of measurement technology, particularly in the paper industry. With a total of 2 patents, his work focuses on innovative methods for measuring water content and utilizing microwave measurements.
Latest Patents
Karhu's latest patents include a "Method and measuring instrument for measuring water content." This invention is designed for measuring the water content of a web in the wire section of a paper machine. It employs at least one radiofrequency-operated resonator sensor that forms an electric near field. The web affects the resonance frequency of each resonator sensor, allowing for accurate measurement of water content based on the resonance frequency.
Another notable patent is the "Method for microwave measurement, measuring device and oscillator." This invention measures an object using microwave radiation. It generates oscillation energy through a feedback coupled active unit. The solution involves creating resonance in at least one oscillator, with each oscillator containing at least one open resonator. The object being measured acts as a functional part of the resonator, causing a resonance frequency that depends on the location of the object's surface. A measurement part determines characteristics of the object based on the resonance frequency of each oscillator.
Career Highlights
Throughout his career, Jarmo Karhu has worked with notable companies such as Senfit Oy and Metso Paper Inc. His experience in these organizations has contributed to his expertise in measurement technologies and innovations in the paper industry.
Collaborations
Karhu has collaborated with several professionals in his field, including Pekka Jakkula and Taavi Hirvonen. These collaborations have likely enhanced his work and contributed to the development of his patents.
Conclusion
Jarmo Karhu's innovative patents and career in measurement technology highlight his significant contributions to the industry. His work continues to influence advancements in the field, particularly in the paper manufacturing process.