Location History:
- Yokohama, JP (1998)
- Hadano, JP (2003 - 2011)
- Tokyo, JP (2015)
Company Filing History:
9 out of 42,517 
1 out of 8 
1 out of 21 Years Active: 1998-2015
Title: Naoki Maru: Innovator in Semiconductor Technology
Introduction
Naoki Maru, an accomplished inventor based in Hadano, Japan, has made significant contributions to the field of semiconductor technology. With a total of nine patents to his name, Maru's work focuses on enhancing the efficiency and effectiveness of electronic circuits and power supply systems.
Latest Patents
Two of Naoki Maru's latest patents exemplify his innovative approach to semiconductor design. The first patent pertains to a **semiconductor drive circuit and power conversion apparatus**. This invention ensures stable dead time in a semiconductor drive circuit for switching devices that utilize a wide bandgap semiconductor. The design features a specific configuration of the drain and source terminals of the switching devices, along with a gate drive circuit that includes an FET circuit paired with a resistor-capacitor parallel circuit.
The second patent focuses on an **electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus**. This innovation addresses issues such as efficiency deterioration in power supply systems caused by semiconductor voltage drops, resulting in reduced wasted power and fewer erroneous operations. The design incorporates a mounting structure for electronic circuits featuring multiple busbars that help enhance performance while maintaining higher than 70% power efficiency in switching power supply apparatus with output specifications below 2 V and over 100 A.
Career Highlights
Naoki Maru's career includes experience with notable companies such as Hitachi, Ltd. and Densei Lambda K.K., where he has honed his skills and contributed to cutting-edge technology in semiconductor applications. His extensive work with these firms has allowed him to make substantial advancements in the field.
Collaborations
Throughout his career, Naoki Maru has collaborated with esteemed colleagues, including Hideho Yamamura and Koji Nisisu. These partnerships have played a crucial role in fostering innovation and advancing the technology surrounding semiconductor devices.
Conclusion
In summary, Naoki Maru stands out as a prominent inventor in the semiconductor industry, with nine patents showcasing his commitment to enhancing electronic circuits and power supply systems. His contributions not only reflect his technical acumen but also his dedication to innovation, making him a valuable asset in the field of technology.