Company Filing History:
1 out of 28 
1 out of 4 
1 out of 2 Years Active: 1985-2003
Title: **Inventor Tonis Oja: A Pioneer in Particle Analysis Technologies**
Introduction
Tonis Oja, an innovative inventor based in Scarsdale, NY, has made significant contributions in the field of particle analysis. With a total of three patents to his name, Oja has developed advanced technologies that enhance the understanding of particles dispersed in various mediums. His inventions reflect his commitment to improving analytical techniques in scientific research.
Latest Patents
Tonis Oja's latest patents include two notable inventions:
1. **Device for use in determining characteristics of particles dispersed in a medium** - This device features a specialized sample cell designed to hold samples with dispersed particles. A transducer emits sound waves into the sample, while a mirror surface is strategically positioned to move translationally within the cell without causing disruption to the sample level and without requiring dynamic o-ring seals, effectively reflecting the emitted sound waves.
2. **Colloid analyzer** - This innovative colloid analyzer utilizes a low-frequency, low-power continuous acoustic wave signal directed at spaced electrodes adjacent to a chamber containing a colloid sample. The configuration includes probes for sensing pH, temperature, and conductivity of the analyzed samples. A piezoelectric transmitter generates the acoustic drive signal, while an electronic signal processing circuit acts as a receiver, providing output signals related to the zeta potential of the particles. A computer then generates graphical outputs regarding zeta potential and surface charge density, along with optional apparatus for measuring flocculation.
Career Highlights
Throughout his career, Tonis Oja has played a crucial role in the development of analytical technologies. He has worked with companies such as **Matec, Inc.** and **Pen Kem, Inc.**, where he contributed to research and development projects that emphasized particle analysis and measurement techniques. His extensive experience in these companies has allowed him to cultivate expertise that is evident in his patented inventions.
Collaborations
During his professional journey, Oja has collaborated with notable individuals in the field, including Gary L. Petersen and David W. Cannon. These collaborations have bolstered his projects and contributed to the advancement of technologies in particle characterization.
Conclusion
Tonis Oja is a distinguished inventor whose work in particle analysis has laid the groundwork for significant advancements in the field. With his innovative patents and collaborative spirit, he continues to inspire future generations of inventors and researchers. His contributions serve as a hallmark of the importance of innovation in scientific exploration.