This inventor holds 25 USPTO granted patents and 1 EPO patent, primarily in Semiconductor Devices. Top assignees: Seiko Instruments Inc, Ablic Inc., Sii Semiconductor Corporation. Active years: 2010-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
14 out of 2,903 
8 out of 350 
2 out of 163 Years Active: 2010-2025
Areas of Expertise:
Title: Innovations and Contributions of Kazuhiro Tsumura in Semiconductor Technology
Introduction: Kazuhiro Tsumura, an accomplished inventor based in Chiba, Japan, holds an impressive portfolio of 23 patents. His work primarily focuses on advancements in semiconductor devices and reference voltage generation technologies. Tsumura's inventions reflect a significant understanding of electrical engineering and contribute to the ongoing innovation within the field.
Latest Patents: Among Tsumura's latest inventions is a reference voltage generation device designed to output a constant current through a dedicated constant current circuit. This device features multiple voltage generation circuits that produce output voltages correlated with temperature changes. The innovation specifically allows for the generation of reference voltage based on the constant current and the output voltage from selected voltage generation circuits.
Another noteworthy patent is the method of manufacturing a semiconductor device utilizing an N-channel MOS transistor as an electrostatic protection element. This invention details an intricate design with multiple electric field relaxing areas, where impurity concentrations vary both longitudinally and laterally. This innovative approach enhances the efficacy of the electrostatic protection within semiconductor devices.
Career Highlights: Kazuhiro Tsumura has made significant contributions through his roles in renowned companies including Seiko Instruments Inc. and Ablic Inc. His expertise has propelled advancements in semiconductor technology, and his inventive contributions are recognized within the industry.
Collaborations: Throughout his career, Tsumura has collaborated with notable individuals such as Ayako Inoue and Takeshi Morita. These partnerships have fostered an environment of creativity and progression, allowing for the development of innovative technologies and solutions in the field.
Conclusion: Kazuhiro Tsumura's contributions to the field of semiconductor technology and his patented innovations demonstrate his commitment to advancing engineering practices. His work not only showcases remarkable technical prowess but also paves the way for future developments in electronic devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile