Mamoru Ohara

Title: Mamoru Ohara: Innovator in Monolithic Integrated Circuits

Introduction

Mamoru Ohara is a notable inventor based in Atsugi, Japan. He has made significant contributions to the field of electronics, particularly in the development of monolithic integrated circuits. His innovative work has led to the creation of a patent that enhances the functionality of high-frequency amplifier circuits.

Latest Patents

Ohara holds a patent for a monolithic integrated circuit device that includes an AC negative feedback type. This device is formed on a substrate and comprises an AC negative feedback circuit designed for high-frequency amplifier applications. The circuit features a semiconductor impedance element connected to an external terminal on the substrate, along with variable control means for adjusting the amount of AC feedback in the amplifier circuit. The semiconductor impedance element utilized in this invention includes the junction capacitance of a diode under negative bias, diffusion capacitance between the base and emitter electrodes or between the base and collector electrodes of a transistor, or a differentiated resistance of a diode.

Career Highlights

Mamoru Ohara is associated with Nippon Telegraph and Telephone Public Corporation, where he has contributed to various projects in the field of telecommunications and electronics. His work has been instrumental in advancing the technology used in integrated circuits.

Collaborations

Ohara has collaborated with notable colleagues, including Yukio Akazawa and Noboru Ishihara. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Mamoru Ohara's contributions to the field of monolithic integrated circuits demonstrate his commitment to innovation and technology. His patent reflects a significant advancement in high-frequency amplifier circuits, showcasing his role as a key inventor in this domain.