Location History:
- Yokohama Kanagawa, JP (2022 - 2023)
- Yokohama, JP (2023)
Company Filing History:
3 out of 52,766 
3 out of 1,522 Years Active: 2022-2023
Title: Yasuyuki Fujiwara: Innovator in Current Detection and Semiconductor Devices
Introduction
Yasuyuki Fujiwara is a notable inventor based in Yokohama, Kanagawa, Japan. He has made significant contributions to the fields of current detection and semiconductor technology. With a total of 3 patents to his name, Fujiwara's work reflects his expertise and innovative spirit.
Latest Patents
One of Fujiwara's latest patents is a current detection device. This device includes a conductor, a first magnetic field detector, a second magnetic field detector, and a conductive film. The conductor is designed with a first region, a second region, and a third region connecting the edges of the first and second regions. The first magnetic field detector is positioned between the first and second regions, while the second magnetic field detector is located opposite to the first with respect to the third region. The conductive film is bonded to a conductor layer that features a slit, which is wider than the magneto-sensitive parts of the magnetic field detectors, effectively covering the slit.
Another significant patent is a semiconductor device that operates in a normally-off state. This device drives a first transistor that is normally-on. It consists of a first circuitry, a second circuitry, and a first diode. The first circuitry connects to a power supply voltage and a ground voltage, detecting the power supply voltage and outputting its transition state. The second circuitry, also connected to the power supply and ground voltages, outputs a drive voltage for a second transistor based on the first circuitry's output. The first diode connects the drive terminal of the first transistor to the output terminal of the second transistor.
Career Highlights
Fujiwara has worked with prominent companies such as Kabushiki Kaisha Toshiba and Toshiba Electronic Devices & Storage Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in technology.
Collaborations
Throughout his career, Yasuyuki Fujiwara has collaborated with talented individuals, including Yiyao Liu and Naotsugu Kako. These partnerships have contributed to the advancement of his projects and inventions.
Conclusion
Yasuyuki Fujiwara is a distinguished inventor whose work in current detection and semiconductor devices has made a lasting impact in the field. His innovative patents and collaborations highlight his commitment to advancing technology.