Shiro Karasawa

Title: Shiro Karasawa: Innovator in Infrared Emitting Devices

Introduction

Shiro Karasawa is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of infrared technology, particularly in the development of high-performance infrared-emitting devices. His innovative approach has led to advancements that enhance thermal response characteristics and infrared emissivity.

Latest Patents

Karasawa holds a patent for a "Process for producing infrared emitting device and infrared emitting device produced by the process." This patent outlines a method to manufacture an infrared-emitting element with high-speed thermal response characteristics. The process involves forming a bridge portion on a silicon element substrate, which is designed to have a thickness of 5 µm or less. By doping boron as an impurity through ion implantation, he achieves a high impurity concentration that maintains infrared emissivity even with a thinner bridge portion. The annealing process is conducted under specific conditions to activate the impurity layer, ensuring stable doping concentration and enhanced performance.

Career Highlights

Shiro Karasawa is associated with Anritsu Corporation, where he has been instrumental in advancing infrared technology. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the field of semiconductor devices.

Collaborations

Karasawa has collaborated with notable colleagues, including Setsuo Kodato and Seishiro Ohya. Their combined expertise has fostered innovation and development in infrared technologies.

Conclusion

Shiro Karasawa's contributions to the field of infrared-emitting devices exemplify the impact of innovative thinking in technology. His patent and work at Anritsu Corporation highlight his role as a leading inventor in this specialized area.