This inventor holds 48 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Semiconductor Lasers. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1991-2026.
Location History:
- Itami, JP (1991 - 1997)
- Hyogo, JP (2005)
- Tokyo, JP (2001 - 2024)
Company Filing History:
28 out of 21,351 
20 out of 16,571 
Years Active: 1991-2026
Areas of Expertise:
Title: Kimio Shigihara: Pioneer in Semiconductor Laser Technology
Introduction
Kimio Shigihara is a renowned inventor based in Tokyo, Japan, with an impressive portfolio of 46 patents under his name. His work primarily focuses on semiconductor laser technologies, contributing significantly to advancements in this field.
Latest Patents
Among his latest innovations are two notable patents concerning semiconductor laser devices. The first patent describes a semiconductor laser device designed with a semiconductor layer that includes an active layer and multiple cladding layers. This device incorporates a stripe-shaped active region with specific refractive index regions that enhance laser performance. The conditions outlined in the patent ensure optimal functionality for varying laser wavelengths.
The second patent details a semiconductor laser machine that houses a laser element characterized by a unique configuration. It features a heat sink and a sub-mount designed to secure the semiconductor laser element, incorporating a substrate that serves as a thermal stress reliever. The innovative design allows for improved heat management and efficiency of the laser machine.
Career Highlights
Shigihara has had a distinguished career with prominent roles at Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His contributions at these esteemed companies have propelled him to the forefront of semiconductor technology and innovation.
Collaborations
Throughout his career, Shigihara has collaborated with other notable inventors and researchers, including Kazushige Kawasaki and Toshitaka Aoyagi. These partnerships have fostered a collaborative environment that has led to critical advancements in semiconductor laser technologies.
Conclusion
Kimio Shigihara’s contributions to the field of semiconductor laser technology are invaluable. With 46 patents to his name and ongoing innovations, he continues to impact the technological landscape, enhancing the functionality and efficiency of laser devices worldwide. His dedication to research and innovation exemplifies the spirit of modern inventorship.