Location History:
- Urayasu, JP (1995)
- Yokohama, JP (1988 - 2002)
Company Filing History:
Years Active: 1988-2002
Title: Takashi Fujiwara: Innovator in Circuit Design
Introduction
Takashi Fujiwara is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of circuit design, holding a total of 16 patents. His innovative work has advanced the technology used in various electronic devices.
Latest Patents
One of his latest patents is a suppresser circuit. In this design, a first voltage-to-current converting circuit converts an input voltage signal to an output current signal. A second voltage-to-current converting circuit features a non-inverting input terminal for receiving a predetermined bias potential and an inverting input terminal for receiving the input voltage signal. A current-limiting element is connected between the first and second voltage-to-current converting circuits, effectively stopping the flow of current between them while the input voltage signal remains at or below the bias potential. Additionally, it decreases the output current of the first voltage-to-current converting circuit when the input voltage signal exceeds the bias potential.
Another notable invention is an analog signal amplifier circuit that utilizes a differential pair of MOSFETs in its input stage. This invention provides a limiter amplifier using a differential pair of MOS transistors. A series of MOS transistors, each with a drain and a gate connected as a load transistor, are linked to the drains of the differential pair in the input stage. MOS transistors are current-mirror-connected to the load transistors to perform feedback on the differential pair. The outputs of the differential pair are then amplified by another differential pair in the output stage.
Career Highlights
Throughout his career, Takashi Fujiwara has worked with notable companies, including Kabushiki Kaisha Toshiba and Toshiba Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in circuit design.
Collaborations
He has collaborated with esteemed colleagues such as Hideo Matsuda and Michiaki Hiyoshi. Their combined expertise has fostered innovation and development in their respective fields.
Conclusion
Takashi Fujiwara's contributions to circuit design and his impressive portfolio of patents highlight his role as a leading inventor in the industry. His work continues to influence the development of electronic technologies, showcasing the importance of innovation in today's world.
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