Tohru Tamagawa

Title: **Tohru Tamagawa: Innovator in Gas Laser Technology**

Introduction

Tohru Tamagawa, an accomplished inventor based in Chigasaki, Japan, has made significant contributions to the field of gas laser technology. With a portfolio of five patents to his name, his innovative approaches have advanced the functionality and efficiency of laser devices.

Latest Patents

Tamagawa's latest patents include two distinct gas laser devices that utilize high frequency and alternating current (a.c.) power sources. The first patent describes a gas laser device equipped with a high frequency power source that generates a high frequency output voltage. This device features a pair of electrodes positioned around a discharge gap through which laser gas circulates. The electrodes are connected to the power source, and the discharge within the gap produces laser light. Each electrode includes an element, a capacity coupling control element situated on either side, and a dielectric shell, which encapsulates them. This innovative design ensures the discharge occurs between the dielectric shells of the electrodes, optimizing the performance of the gas laser.

The second patent focuses on a gas laser device powered by an a.c. source. Similar in structure, this device also has a pair of electrodes encasing a discharge gap. It is designed to create a positive column region and boundary layer regions, allowing effective laser excitation. The operating frequency of the a.c. power source is set to at least 700 kHz, enabling the voltage in the positive column region to exceed the burden voltage in the boundary layer regions. This careful calibration of dimensions and pressures of the laser gas is critical for achieving efficient operation.

Career Highlights

Throughout his career, Tohru Tamagawa has worked with prestigious companies, including Toshiba Corporation and Tokyo Shibaura Electric Company. His experience in these organizations has greatly influenced his innovative work and patent development in the realm of laser technology.

Collaborations

Tamagawa has collaborated with notable professionals in his field, including Satoru Yanabu and Hisatoshi Ikeda. These partnerships have facilitated the exchange of ideas and expertise, further enhancing the quality and impact of his inventions.

Conclusion

Tohru Tamagawa's contributions to gas laser technology exemplify the spirit of innovation. His latest patents showcase creative solutions that enhance the performance of laser devices, marking him as a prominent figure in the field of laser technology. With continued collaboration and innovation, Tamagawa is set to further influence the landscape of inventions in the years to come.