Company Filing History:
Years Active: 2005-2012
Title: The Innovations of Tadashi Ishimatsu
Introduction
Tadashi Ishimatsu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of imaging technology, holding a total of 7 patents. His work focuses on solid-state image pickup devices and color imaging technologies, which have applications in various electronic devices.
Latest Patents
Ishimatsu's latest patents include a solid-state image pickup device and a manufacturing method thereof. This method involves the manufacturing of a solid-state image pickup device that includes photoelectric conversion elements arranged in a semiconductor substrate. It also features a color filter with multiple color filter patterns that differ in color and are disposed on the surface of the semiconductor substrate. The process includes patterning a plurality of filter layers differing in color, with at least one color filter pattern formed by dry etching and the rest by photolithography.
Another notable patent is for a color imaging device and its manufacturing method. This device comprises a semiconductor substrate with several photoelectric transducers and a color filter with multiple coloring layers. Each coloring layer has a side surface that is perpendicular to the semiconductor substrate and an inclined surface that extends from the side surface. The coloring layers are arranged so that their side surfaces are in contact without gaps, and the end portion of each coloring layer features a curved surface shape.
Career Highlights
Tadashi Ishimatsu is currently employed at Toppan Printing Co., Ltd., where he continues to innovate in the field of imaging technology. His work has significantly advanced the capabilities of color imaging devices, making them more efficient and effective.
Collaborations
Ishimatsu has collaborated with notable coworkers such as Kenzo Fukuyoshi and Satoshi Kitamura. Their combined expertise has contributed to the successful development of advanced imaging technologies.
Conclusion
Tadashi Ishimatsu's contributions to the field of imaging technology through his patents and collaborations highlight his role as a leading inventor. His innovative methods and devices continue to shape the future of imaging technology.
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