This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Ulsi Engineering Corp., Hitachi Vlsi Engineering Corp.. Active years: 1997.
Company Filing History:
2 out of 42,713 
1 out of 87 
1 out of 182 
Years Active: 1997
Title: The Innovations of Hideki Tsunoda
Introduction
Hideki Tsunoda is a notable inventor based in Akishima, Japan. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative approach to improving device reliability and functionality.
Latest Patents
Tsunoda's latest patents include an insulated gate semiconductor device and a driving circuit device. The first patent focuses on enhancing the protective functions of insulated gate semiconductor devices, aiming to improve the cutoff of heating, prevent malfunctions, and enhance ease of usage. This invention comprises a power insulated gate semiconductor element, multiple MOSFETs for a protection circuit, and a constant-voltage circuit utilizing forward voltages across diodes. The design ensures that power supplied to the voltage restricting diodes comes from an external gate terminal, ultimately improving the reliability and usability of the device.
The second patent details a semiconductor device with a protection circuit and an electronic system. This device includes a power MOSFET for the output stage and a temperature detection circuit that activates a latch circuit upon detecting an abnormal rise in chip temperature. This mechanism protects the power MOSFET from destruction by ensuring it becomes non-conductive during critical conditions. The design also features an external reset terminal, allowing for the cancellation of the protective operation when necessary.
Career Highlights
Throughout his career, Hideki Tsunoda has worked with prominent companies such as Hitachi, Ltd. and Hitachi ULSI Engineering Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Tsunoda has collaborated with notable colleagues, including Kozo Sakamoto and Isao Yoshida. Their combined efforts have likely fostered advancements in the semiconductor field.
Conclusion
Hideki Tsunoda's contributions to semiconductor technology through his patents reflect his commitment to innovation and improvement in device reliability. His work continues to influence the industry and pave the way for future advancements.