Hiroki Seyama

Title: Hiroki Seyama: Innovator in Optical Semiconductor Technology

Introduction

Hiroki Seyama is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optical semiconductors, holding a total of 2 patents. His work focuses on enhancing the efficiency and miniaturization of optical devices.

Latest Patents

Seyama's latest patents include an optical semiconductor device and an optical semiconductor module equipped with the same. This innovative mold for molding semiconductor chips serves as both a light-emitting element and a light-receiving element. The mold is made of a material capable of transmitting light, with a groove formed in the region where light is emitted and incident on the semiconductor chips, constituting a reflecting face. This design minimizes the outer size of the light-receiving or light-emitting elements, allowing for the miniaturization of the module containing these semiconductor chips. Another notable patent is the offset correction circuit, which features a current-to-voltage conversion circuit formed of a differential amplifier circuit. This circuit adjusts the current flowing through a resistor based on the difference between the bottom value of the output signal and a reference value, ensuring precise output levels.

Career Highlights

Hiroki Seyama is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of optical semiconductors. His work has been instrumental in advancing the technology used in various electronic devices.

Collaborations

Seyama has collaborated with notable colleagues, including Masashi Arai and Hideo Kunii, contributing to the development of cutting-edge technologies in their field.

Conclusion

Hiroki Seyama's contributions to optical semiconductor technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in semiconductor design and functionality.