Location History:
- Hitachi, JP (1992)
- Kitaibaraki, JP (1992 - 1997)
Company Filing History:
6 out of 42,496 
5 out of 14 
1 out of 1 Years Active: 1992-1997
Title: Hidetoshi Arakawa: Innovator in Semiconductor Technology
Introduction
Hidetoshi Arakawa is a prominent inventor based in Kitaibaraki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work has been instrumental in advancing the capabilities of semiconductor devices and integrated circuits.
Latest Patents
One of Arakawa's latest patents is a semiconductor device that features an emitter region, a collector region directly beneath the emitter, and a two-region base structure. This innovative design includes a first base region situated between the emitter and collector regions, while a second base region supports the collector region. The regions are characterized by progressively higher impurity concentrations, with the collector region having a higher concentration than the first base region, and the second base region having an even higher concentration than the collector region. The emitter region boasts the highest impurity concentration. Additionally, a resistance region is formed from a projecting end portion of one of the base layers, ensuring that both base portions maintain the same potential. Electrodes are provided for ohmic contact with the emitter, collector, and base regions. This two-region base structure allows the device to achieve high resistance, enabling both high breakdown voltage and high frequency characteristics.
Another notable patent is a semiconductor integrated circuit unit designed for motor control. This unit integrates an inverter circuit, drive circuits for the inverter's switching elements, an internal power source circuit for powering the drive circuits, and a logical circuit for signal transmission to the drive circuits. This innovative design enhances the efficiency and functionality of motor control systems.
Career Highlights
Hidetoshi Arakawa has had a distinguished career, working with leading companies in the semiconductor industry. He has been associated with Hitachi, Ltd. and Hitachi Haramachi Semiconductor, Ltd., where he contributed to various groundbreaking projects and innovations.
Collaborations
Throughout his career, Arakawa has collaborated with notable colleagues, including Naoki Sakurai and Mutsuhiro Mori. These partnerships have fostered a collaborative environment that has led to significant advancements in semiconductor technology.
Conclusion
Hidetoshi Arakawa's contributions to semiconductor technology have made a lasting impact on the industry. His innovative patents and collaborative efforts with esteemed colleagues highlight his role as a key figure in advancing semiconductor devices and integrated circuits. His work continues to influence the future