This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Toshiba Medical Systems Corporation. Active years: 2017-2019.
Company Filing History:
Years Active: 2017-2019
Title: Daizo Oikawa: Innovator in X-ray Technology
Introduction
Daizo Oikawa is a prominent inventor based in Otawara, Japan. He has made significant contributions to the field of medical imaging, particularly in X-ray computed tomography. With a total of 3 patents to his name, Oikawa's work has advanced the technology used in medical diagnostics.
Latest Patents
Oikawa's latest patents include an innovative X-ray computed tomography apparatus that features both a first and a second X-ray detector for counting X-ray photons. This apparatus is designed to store a variety of reference count data that indicates energy spectra of X-rays, which are linked to different tube voltages or tube currents. The estimation circuitry within the device estimates the tube voltage or current during X-ray irradiation by comparing energy spectra between second count data and the stored reference count data. Additionally, correction circuitry is employed to adjust the first count data using an energy spectrum calculated based on the estimated tube voltage or current. The reconstruction circuitry then utilizes the corrected first count data to create medical image data.
Another notable patent is the X-ray CT apparatus that flattens the photon energy distribution of the X-rays being radiated. This apparatus includes an X-ray tube, a detector, a data acquisition system, a tube voltage generator, and a grid controller. The X-ray tube emits X-rays onto a subject, while the detector comprises multiple elements that detect the photons. The data acquisition system counts the detected photons to gather projection data. The tube voltage generator applies voltage to the X-ray tube, adjusting it in a predetermined cycle, while the tube current controller manages the current based on the voltage changes. This innovative design ensures a more uniform photon energy distribution from the X-ray tube.
Career Highlights
Daizo Oikawa is currently employed at Toshiba Medical Systems Corporation, where he continues to develop cutting-edge technologies in medical imaging. His work has been instrumental in enhancing the capabilities of X-ray systems, making them more efficient and effective for medical diagnostics.
Collaborations
Oikawa has collaborated with notable colleagues, including Hiroaki Nakai and Fumio Ishiyama, contributing to the advancement of X-ray technology through teamwork and shared expertise.
Conclusion
Daizo Oikawa's contributions to the field of X-ray technology have significantly impacted medical imaging. His innovative patents