Company Filing History:
1 out of 35 
1 out of 13,307 Years Active: 2020-2024
Title: Innovations of Yoshihito Kawakami
Introduction
Yoshihito Kawakami is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work primarily focuses on power conversion and driver circuits, showcasing his expertise in electronic engineering.
Latest Patents
Kawakami's latest patents include a Class-D power converter and a driver circuit with a switching control circuit. The Class-D power converter features a switch circuit composed of a first and second semiconductor element connected in series, capable of receiving a DC voltage of 100 V or more. The drive circuit is designed to enable the switching operation of these semiconductor elements. Additionally, the isolated power supply circuit converts a predetermined power supply voltage into an isolated first power supply voltage, which is then output to the drive circuit. The isolation signal converter plays a crucial role by converting a first signal of 6 MHz or more into an isolated first drive signal. Both semiconductor elements utilized in this invention are wide bandgap semiconductor elements.
The driver circuit, which is supplied with both positive and negative power supply voltages, drives a switching element according to an input signal. It includes a first output terminal connected to the control terminal via a first impedance circuit, allowing it to output the appropriate power supply voltage to charge the control terminal and activate the switching element. The circuit also features a negative voltage switch and a first discharge switch, enhancing its functionality and efficiency.
Career Highlights
Kawakami has worked with prominent companies such as Panasonic Semiconductor Solutions Co., Ltd. and Panasonic Intellectual Property Management Co., Ltd. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his skills in semiconductor technology.
Collaborations
Throughout his career, Kawakami has collaborated with talented individuals, including Takuya Ishii and Takahiro Uehara. These collaborations have likely fostered innovation and creativity in his projects.
Conclusion
Yoshihito Kawakami's contributions to the field of semiconductor technology are noteworthy. His innovative patents and career experiences reflect his dedication to advancing electronic engineering. His work continues to influence the industry and inspire future innovations.