Takashi Shirakawa

Title: Takashi Shirakawa: Innovator in Power Conversion Technology

Introduction

Takashi Shirakawa is a prominent inventor based in Ehime, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of dual active bridge (DAB) converters.

Latest Patents

Shirakawa's latest patents include innovative power conversion devices designed for efficient power transfer between DC parts in DAB converters. One of his patents details a device that steps down voltage, featuring a first bridge circuit that operates in two distinct periods: one where the first DC part and a primary winding of an insulated transformer conduct, and another where the ends of the primary winding are short-circuited. The control circuit in this device variably manages the phase difference between the first and second legs, as well as the simultaneous off periods of various switching elements.

Another patent focuses on stepping up voltage for power transfer. This device includes a second bridge circuit that conducts during a specific period involving a secondary winding of an insulated transformer and the second DC part. Similar to his other invention, the control circuit fixes the phase difference and variably controls the off periods of the switching elements.

Career Highlights

Shirakawa is currently employed at Panasonic Intellectual Property Management Co., Ltd., where he continues to innovate in the field of power conversion. His expertise and dedication to research have positioned him as a key figure in the development of advanced electrical technologies.

Collaborations

Throughout his career, Shirakawa has collaborated with notable colleagues, including Shogo Hirota and Kenji Hanamura. These partnerships have fostered a collaborative environment that enhances the innovation process.

Conclusion

Takashi Shirakawa's contributions to power conversion technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of electrical engineering and a drive to improve energy efficiency in modern applications.