Keiji Yamaguchi

Title: Keiji Yamaguchi: Innovator in Ear Thermometer Technology

Introduction

Keiji Yamaguchi is a prominent inventor based in Shimizu, Japan. He has made significant contributions to the field of medical technology, particularly in the development of ear thermometers. With a total of 12 patents to his name, Yamaguchi's innovations have improved the accuracy and efficiency of temperature measurement in medical settings.

Latest Patents

Yamaguchi's latest patents include an ear thermometer and a method of manufacturing an ear thermometer. This innovative ear thermometer features a temperature detection element and an infrared detection element arranged near the opening portion of a probe. This design achieves a reduction in manufacturing costs while minimizing the influence of thermal shock. The invention incorporates a temperature detection element to detect environmental temperature and an infrared detection element to detect infrared radiation emitted from the temperature measurement region in the ear. The probe is designed with an end face portion that has an opening at its distal end, an inner surface portion of a hollow cylindrical member, and an inwardly protruding engaging portion. A detection element housing is fixed to close the opening of the probe, forming an air layer between the housing and the probe.

Another notable patent is the ear-type thermometer and its control method. This device measures body temperature using a temperature detection element that detects ambient temperature and an infrared detection element that detects infrared radiation from a measurement site within the aural cavity. The two elements are housed in a probe, which includes a detachable probe cover, a detection switch to monitor the attachment of the cover, and a temperature conversion coefficient that corrects body temperature based on the detection results from both elements. Additionally, the thermometer features a control unit that determines whether the probe cover has exceeded its usage count limit, alerting users when it needs to be replaced.

Career Highlights

Throughout his career, Keiji Yamaguchi has worked with notable companies such as Terumo Kabushiki Kaisha and Terumo Corporation. His work in these organizations has allowed him to develop and refine his innovative ideas in medical technology.

Collaborations

Yamaguchi has collaborated with several professionals in his field, including Tadashi Fujii and Toshinori Hirano. These collaborations have contributed to the advancement of his inventions and the overall improvement of medical devices.

Conclusion

Keiji Yamaguchi's contributions to ear thermometer technology