Company Filing History:
2 out of 15,906 
1 out of 21,351 
Years Active: 1999-2016
Title: Chieko Nishida: Innovator in Water-Concentration Detection Technology
Introduction
Chieko Nishida is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of water-concentration detection technology, holding a total of 3 patents. Her innovative work has implications for the efficiency and safety of gas-insulated devices.
Latest Patents
Nishida's latest patents include a sophisticated water-concentration detection device designed to measure the water concentration of insulating gas within gas-insulated devices. The first patent describes a device that features porous electrodes arranged to face each other, a solid electrolyte membrane with hydrogen-ion conductivity, and a voltage application unit that applies an alternating-current voltage. This device also includes an impedance measurement unit that measures the alternating-current impedance, allowing for accurate detection of water concentration based on the measured impedance.
The second patent further refines this technology by incorporating a gas chamber that encloses the insulating gas. It utilizes similar components, including porous electrodes and a solid electrolyte membrane, while adding a drying unit that removes water from the atmosphere in the gas chamber before the insulating gas is introduced. This innovation enhances the reliability of the water-concentration detection process.
Career Highlights
Throughout her career, Chieko Nishida has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. Her experience in these organizations has allowed her to develop and refine her inventions, contributing to advancements in the field.
Collaborations
Nishida has collaborated with esteemed colleagues, including Tatsuya Yabe and Shiro Yamauchi. These partnerships have fostered a creative environment that has led to the development of her innovative technologies.
Conclusion
Chieko Nishida's contributions to water-concentration detection technology exemplify her dedication to innovation and excellence. Her patents reflect a commitment to improving the safety and efficiency of gas-insulated devices.