Takashi Nishihara

Title: Takashi Nishihara: Innovator in Magnetic Resonance Imaging Technology

Introduction

Takashi Nishihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic resonance imaging (MRI) technology, holding a total of 19 patents. His work focuses on improving the accuracy and efficiency of MRI imaging techniques.

Latest Patents

Nishihara's latest patents include a nuclear magnetic resonance apparatus and a body motion correction method. This innovative method provides an image corrected for body motion with high accuracy in a short time when performing retrospective body motion correction on an MRI image. It reduces the time from imaging to image display. The body motion corrector of the MRI apparatus features a weighting factor calculator that computes a three-dimensional weighting factor based on signals received by multi-channel receive coils. Additionally, a processing space converter transforms three-dimensional frequency space data of a measurement signal and the three-dimensional weighting factor into hybrid space data and a two-dimensional weighting factor. A synthesized signal calculator then calculates a synthesized signal through convolution integration of the hybrid space data and the two-dimensional weighting factor. Furthermore, a body motion position detector identifies the occurrence position of body motion in the hybrid space from the hybrid space data and the synthesized signal.

Another notable patent involves a magnetic resonance imaging apparatus and method that efficiently suppresses downstream blood in specific regions of blood vessels with slow flow velocities, such as the portal vein. This technique applies multiple Beam Sat pulses to equally suppress signals of blood flowing into the desired imaging region from a specific blood vessel during the period from applying an inversion recovery (IR) pulse to the start of main imaging. By determining the application conditions of the Beam Sat pulses based on the flow velocity of blood in the desired blood vessel, downstream blood can be effectively suppressed.

Career Highlights

Throughout his career, Nishihara has worked with notable companies such as Hitachi, Ltd. and Toppan Printing Co., Ltd. His experience in these organizations has contributed to his expertise in MRI technology and innovation.

Collaborations

Nishihara has collaborated with talented individuals in his field, including Hiroyuki Itagaki and Yusuke Tochigi. These collaborations have further enhanced his research and development efforts in MRI technology.

Conclusion

Takashi Nishihara is a distinguished inventor whose work in magnetic resonance imaging has led to significant advancements