Yoshihiro Kammei

Title: Innovations of Yoshihiro Kammei

Introduction

Yoshihiro Kammei is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of mass spectrometry, holding a total of 2 patents. His work focuses on enhancing the performance and efficiency of time-of-flight mass spectrometers.

Latest Patents

Kammei's latest patents include a time-of-flight mass spectrometer that is capable of cutting out a major portion of carrier gas-derived ions ahead of the ion reservoir. This innovative design features an electron impact ion source with source magnets that deflect some of the produced ions away from the center axis of the ion reservoir. Additionally, electrostatic lenses are utilized to promote the deflection of ions, along with a differentially pumped slit to cut off the deflected ions downstream of the ion source. Another notable patent is for a time-of-flight mass spectrometer using microchannel plates (MCPs) that prevents saturation even when strong ion pulses hit the MCPs. This invention includes an intermediate ion detector that measures the current values of ion pulses and the elapsed times since the start of travel, allowing for feedback control to prevent saturation of the final ion detector.

Career Highlights

Yoshihiro Kammei is associated with Jeol Ltd., a company known for its advanced scientific instruments. His work has significantly impacted the field of mass spectrometry, leading to improved analytical capabilities.

Collaborations

Kammei has collaborated with notable coworkers such as Takaya Satoh and Tatsuji Kobayashi, contributing to the advancement of their shared field.

Conclusion

Yoshihiro Kammei's innovative patents and contributions to mass spectrometry demonstrate his expertise and commitment to advancing scientific research. His work continues to influence the development of more efficient analytical instruments.