Sumio Kumashiro

Title: Sumio Kumashiro: Innovator in Mass Analysis Technology

Introduction

Sumio Kumashiro is a distinguished inventor based in Kyoto, Japan. He has made significant contributions to the field of mass analysis technology, holding a total of 6 patents. His innovative work has advanced the understanding and application of electrostatic ion traps in mass spectrometry.

Latest Patents

One of his latest patents is a mass analyser and method of mass analysis. This invention features an electrostatic ion trap that includes a first array of electrodes and a second array of electrodes, which are spaced apart. The arrays can be formed by parallel strip electrodes or concentric, circular, or part-circular electrically conductive rings. The electrodes are supplied with a consistent voltage pattern, creating a specific electrical potential distribution that reflects ions isochronously. This design allows ions to undergo periodic, oscillatory motion, which is focused mid-way between the arrays. Additionally, amplifier circuitry is utilized to detect image current with frequency components related to the mass-to-charge ratio of the ions.

Career Highlights

Throughout his career, Sumio Kumashiro has worked with notable companies, including Shimadzu Corporation and Rikagaku Kenkyuusho. His experience in these organizations has contributed to his expertise in mass analysis technology and has facilitated the development of his innovative patents.

Collaborations

Sumio Kumashiro has collaborated with several professionals in his field, including Mikhail Sudakov and Li Ding. These collaborations have likely enriched his research and development efforts, leading to advancements in mass analysis technology.

Conclusion

Sumio Kumashiro's contributions to mass analysis technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in mass spectrometry and related technologies.