This inventor holds 3 USPTO granted patents. Top assignee: Ngk Spark Plug Company, Limited. Active years: 1994-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Konan, JP (1994)
- Nagoya, JP (1994)
- Aichi, JP (1995)
Company Filing History:
Years Active: 1994-1995
Title: Innovations by Jun-ichi Tokumoto
Introduction
Jun-ichi Tokumoto is a notable inventor based in Konan, Japan. He has made significant contributions to the field of ion-selective electrodes, holding a total of 3 patents. His work is characterized by innovative designs that enhance the functionality and reliability of measurement devices.
Latest Patents
One of his latest patents is an ion-selective electrode that comprises, in order of enumerating from the measured-ion contact side: a solid electrolyte as an ion-sensitive membrane, an ionic bridge layer, and an internal electrode. The bridge layer is prepared by mixing a salt mixture with an electrically conductive resin composition at a ratio of 1:2 to 3:1 in weight, determined after heat treatment. The salt mixture is prepared by mixing silver halide with sodium phosphate at a ratio of from 9:1 to 3:7 in weight. This electrode is very small in voltage fluctuation detected among products, easily downsized to measure a very small amount of a sample solution, and useful in measuring the activity of ion species such as Na-ion. Another significant patent is for a reference electrode that contains lithium chloride (LiCl) and ammonium nitrate (NH4NO3) in a dissolved state at a specific ratio. This internal liquid also contains AgCl to saturation for use with an Ag-AgCl internal electrode, and is in a gellated state or impregnated in a highly water-absorbent synthetic resin. This design minimizes the drying up of the internal liquid, ensuring prolonged functionality as a liquid bridge.
Career Highlights
Jun-ichi Tokumoto is currently employed at NGK Spark Plug Company, Limited, where he continues to innovate in the field of measurement technology. His work has been instrumental in advancing the capabilities of ion-selective electrodes, making them more efficient and reliable.
Collaborations
He has collaborated with notable coworkers, including Takashi Katoh and Kohji Okada, who have contributed to his research and development efforts.
Conclusion
Jun-ichi Tokumoto's contributions to the field of ion-selective electrodes demonstrate his innovative spirit and commitment to advancing measurement technology. His patents reflect a deep understanding of materials and their applications in real-world scenarios.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile