Location History:
- Tokyo, JP (2002)
- Hino, JP (1995 - 2007)
- Hachioji, JP (1989 - 2008)
Company Filing History:
10 out of 3,106 
1 out of 389 
Years Active: 1989-2008
Title: Akira Ishisaka: Innovator in Radiation Imaging Technology
Introduction
Akira Ishisaka is a prominent inventor based in Hino, Japan. He has made significant contributions to the field of radiation imaging, holding a total of 11 patents. His work focuses on enhancing the quality and efficiency of radiation image reading systems.
Latest Patents
One of Ishisaka's latest patents is a radiation image reading system. This innovative system includes a radiation source that irradiates radiation toward a subject. The radiation source has a specific size 'D'. Additionally, it features a radiation detector with a large number of detecting devices arranged in an array form. These devices generate an image signal by detecting the radiation transmitted through the subject. Each detecting device has an aperture size 'A', which fulfills the condition of B ≤ A ≤ 2B, where B represents the size of a penumbra on the radiation detector. The penumbra size is defined by the equation B = Dx(R2/R1), with R1 being the distance from the radiation source to the subject and R2 being the distance from the subject to the radiation detector. Another notable patent is an X-ray image radiographing method and apparatus. This method enhances image sharpness that may be reduced due to penumbra by improving the edge of the image through refraction contrast enhancement.
Career Highlights
Throughout his career, Akira Ishisaka has worked with notable companies such as Konica Corporation and Konica Minolta Medical and Graphic, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in radiation imaging technology.
Collaborations
Ishisaka has collaborated with talented individuals in his field, including Hiromu Ohara and Chika Honda. Their teamwork has contributed to the advancement of radiation imaging technologies.
Conclusion
Akira Ishisaka's contributions to radiation imaging technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the field positively, paving the way for future innovations in medical imaging.