Hiromitsu Kiriyama

Title: Hiromitsu Kiriyama: Innovator in High-Pressure Discharge Lamps and Laser Technology

Introduction

Hiromitsu Kiriyama is a notable inventor based in Kyoto, Japan. He has made significant contributions to the fields of high-pressure discharge lamps and laser technology. With a total of 4 patents to his name, Kiriyama's work has had a considerable impact on these industries.

Latest Patents

Kiriyama's latest patents include a high-pressure discharge lamp and a method of manufacturing it. This innovative lamp features a sealing portion made of glass and a sealing metal piece. The manufacturing method involves irradiating the sealing metal piece with a laser beam, whose pulse width is 1×10 seconds or less, to perform a surface treatment. Additionally, the sealing metal piece may have a groove that is 120 to 600 nm in depth and 450 to 1,200 nm in width. Another significant patent focuses on a method of increasing the contrast of a high-intensity laser. In this improved method, signal light outputted from a laser oscillator is amplified by Optical Parametric Chirped Pulse Amplification (OPCPA), which is excited by pump light with a short pulse width comparable to that of the signal light, resulting in extremely high contrast.

Career Highlights

Throughout his career, Kiriyama has worked with prestigious organizations such as the Japan Atomic Energy Research Institute and the Japan Atomic Energy Agency. His experience in these institutions has allowed him to develop and refine his innovative technologies.

Collaborations

Some of his notable coworkers include Hiroyuki Daido and Yoichiro Maruyama. Their collaborative efforts have contributed to advancements in their respective fields.

Conclusion

Hiromitsu Kiriyama's contributions to high-pressure discharge lamps and laser technology demonstrate his innovative spirit and dedication to advancing these fields. His patents reflect a commitment to improving technology and enhancing performance in practical applications.