Kazuhiro Koshio

Title: Kazuhiro Koshio: Innovator in Power Amplifier Technology

Introduction

Kazuhiro Koshio is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of electronics, particularly in the development of power amplifier modules. With a total of 3 patents to his name, Koshio continues to push the boundaries of innovation in his industry.

Latest Patents

Koshio's latest patents focus on advanced power amplifier modules. These modules include a first current source that outputs a first current corresponding to a level control voltage for controlling the signal level of an amplified signal. Additionally, a second current source outputs a second current corresponding to the same level control voltage. The design features a first transistor where an input signal and a first bias current are supplied to a base, with the emitter grounded. A second transistor connects its emitter to the collector of the first transistor, receiving the second current at its base. The first amplified signal, obtained by amplifying the input signal, is then output from the collector. Furthermore, a third transistor receives the first current at its collector, with a bias control current or voltage supplied to its base, while the first bias current is supplied from the emitter to the base of the first transistor.

Career Highlights

Kazuhiro Koshio is currently employed at Murata Manufacturing Co., Ltd., a leading company in the electronics sector. His work has been instrumental in enhancing the performance and efficiency of power amplifiers, making significant strides in the industry.

Collaborations

Koshio has collaborated with talented coworkers such as Shota Ishihara and Seiko Ono. Their combined expertise has contributed to the successful development of innovative technologies in their field.

Conclusion

Kazuhiro Koshio stands out as a prominent inventor in the realm of power amplifier technology. His contributions and collaborations continue to shape the future of electronics.