Tetsuro Ijichi

Title: Tetsuro Ijichi: Innovator in Semiconductor Laser Technology

Introduction

Tetsuro Ijichi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor laser technology, holding a total of 3 patents. His work focuses on enhancing the performance and reliability of semiconductor laser devices.

Latest Patents

Ijichi's latest patents include innovative designs aimed at improving semiconductor laser devices. One of his notable inventions is a semiconductor laser device featuring a COD-preventing structure. This device comprises a semiconductor laser main body with an active layer situated between two cladding layers. It also includes a non-absorbing layer of InGaP formed on the facets of the semiconductor laser main body, which has a band gap greater than that of the active layer. Another significant patent is for a semiconductor laser device that incorporates aluminum diffused into the active region along the facets. This addition increases the bandgap of the active region, thereby enhancing the catastrophic optical damage (COD) level of the device.

Career Highlights

Tetsuro Ijichi is currently employed at The Furukawa Electric Co., Ltd., where he continues to develop cutting-edge technologies in semiconductor lasers. His expertise and innovative approach have positioned him as a key figure in the industry.

Collaborations

Ijichi has collaborated with notable colleagues, including Ranjit S Mand and Jingming Xu. These partnerships have contributed to the advancement of semiconductor laser technology and have fostered a collaborative environment for innovation.

Conclusion

Tetsuro Ijichi's contributions to semiconductor laser technology are noteworthy, with several patents that enhance device performance and reliability. His work at The Furukawa Electric Co., Ltd. and collaborations with esteemed colleagues further underscore his impact in the field.