Location History:
- Sendai, JP (2001 - 2010)
- Miyagi, JP (2011 - 2013)
Company Filing History:
5 out of 16,453 
2 out of 27,375 
Years Active: 2001-2013
Title: Kazuhiro Sunagawa: Innovator in Ultrasonography
Introduction
Kazuhiro Sunagawa is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of ultrasonography, holding a total of 7 patents. His work focuses on enhancing the capabilities of ultrasonic diagnostic apparatuses, which are crucial in medical imaging.
Latest Patents
One of his latest patents is an ultrasonic diagnostic apparatus that includes a positional displacement calculating section. This section calculates the magnitudes of positional displacements at multiple measuring points within body tissue. Additionally, it features a thickness variation calculating section that computes thicknesses or thickness variations between two arbitrary points within the tissue. This is based on the magnitudes of positional displacements. Furthermore, a maximum/minimum value calculating section finds the maximum and minimum thicknesses or thickness variations during specified periods. The apparatus can calculate at least one of the greatest thickness difference, strain, and elastic property based on the differences between maximum and minimum measurements.
Another notable patent involves an image compression unit designed for ultrasonic diagnostic devices. This unit includes a block divider that segments image data into multiple blocks. It also features a DCT portion that applies discrete cosine transform to each block's image data. The quantization factor output portion provides a numerical value indicative of the fineness of quantization. A correction value computation portion computes a unique correction value based on the position of each block. The quantizer then quantizes the data, and an encoder encodes the quantized data to output compressed information. This innovative configuration allows for varying compression ratios within a frame without the need to encode compression parameters for each block.
Career Highlights
Kazuhiro Sunagawa has worked with notable companies such as Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced ultrasonic technologies.
Collaborations
Throughout his career, Sunagawa has collaborated with esteemed colleagues, including Yoshinao Tannaka and Hiroshi Kanai. These partnerships have fostered innovation and advancement in the field of ultrasonography.
Conclusion
Kazuhiro Sunagawa's contributions to ultrasonography through his patents and collaborations highlight his role as a key innovator in medical imaging technology. His work continues to impact the field positively, enhancing diagnostic capabilities for healthcare professionals.