Tsunemi Tokieda

Title: Tsunemi Tokieda: Innovator in Optical Measurement Technologies

Introduction

Tsunemi Tokieda is a prominent inventor based in Yokohama, Japan. She has made significant contributions to the field of optical measurement technologies, particularly in the area of liquid chromatography. With a total of 3 patents to her name, her work has greatly enhanced the sensitivity and responsiveness of measurement apparatuses.

Latest Patents

One of her latest inventions is an apparatus for measuring differential refractive index. This invention provides a method that significantly improves sensitivity while ensuring quick responsiveness to refractive index differences in sample liquids. The apparatus features a flow cell that deflects a measurement beam based on the refractive index difference between a reference liquid and a sample liquid. This innovative design includes three independent chambers, allowing for precise measurement of changes in deflection angle.

Another notable patent is a method of detecting the angle of optical rotation in a solution. In this detection apparatus, a linearly polarized light beam is transformed into an alternative linearly polarized light beam and a circularly polarized light beam. The transmitted light beam is then separated into two polarized light components, and their intensities are measured to obtain a signal proportional to the angle of rotation caused by the sample solution. This method allows for accurate detection of optical rotary power in flowing solutions.

Career Highlights

Throughout her career, Tsunemi Tokieda has worked with notable companies such as Showa Denko K.K. and Showa Denko Kabushiki Kaisha. Her experience in these organizations has contributed to her expertise in optical measurement technologies and has facilitated her innovative work.

Collaborations

Tsunemi has collaborated with esteemed colleagues, including Norio Ishida and Toshio Tokuda. These partnerships have further enriched her research and development efforts in the field.

Conclusion

Tsunemi Tokieda's contributions to optical measurement technologies have established her as a leading inventor in her field. Her innovative patents continue to influence advancements in liquid chromatography and optical detection methods.