Yoshiharu Tashiro

Title: Innovations of Yoshiharu Tashiro

Introduction

Yoshiharu Tashiro is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on innovative methods and apparatuses that enhance the functionality of semiconductor devices.

Latest Patents

One of Tashiro's latest patents is a driving method and apparatus for a pnpn semiconductor device. This method involves applying a voltage higher than the holding voltage to the anode electrode of the pnpn semiconductor device. It also includes supplying a control signal light to set the device into an ON state and an information signal light to emit output light. The control and information signal lights are supplied sequentially under the applied voltage. The apparatus for this method features a branched light information transmission input line with a light detection circuit coupled to at least one line. A synchronous driving circuit applies voltage to the pnpn semiconductor device, which is activated by light detected from the input line.

Another notable patent is an optical interconnection apparatus. This invention consists of a matrix of optical functional devices divided into multiple device units. Each unit contains at least two optical functional devices with different light transmitting coatings. Light signals emitted through these coatings are received by corresponding light receiving devices arranged in a one-dimensional pattern. The selection of optical functional devices to be driven changes the coupling degree between each device unit and its corresponding light receiving device.

Career Highlights

Yoshiharu Tashiro is currently associated with NEC Corporation, a leading technology company known for its innovations in information technology and electronics. His work at NEC has allowed him to push the boundaries of semiconductor technology and contribute to advancements in optical interconnection systems.

Collaborations

Throughout his career, Tashiro has collaborated with notable colleagues, including Kenichi Kasahara and Ichiro Ogura. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the semiconductor field.

Conclusion

Yoshiharu Tashiro's contributions to semiconductor technology through his innovative patents have significantly impacted the industry. His work continues to inspire advancements in the field, showcasing the importance of innovation in technology.