Ryutarou Ohbuchi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of data compression and three-dimensional geometric modeling. With a total of 4 patents to his name, his work has had a considerable impact on technology and innovation.

Latest Patents

Ohbuchi's latest patents include a method and apparatus for compressing and transmitting a three-dimensional geometric model. This data compression method processes topological structures of various geometric models. A topological transformation is performed for a three-dimensional (3D) geometric model that is to be compressed, and a triangle mesh is generated. A conventional triangle mesh compression method is employed. Associated data required for the performance of a reverse operation for the topological transformation are prepared. As a result, topological data for the 3D geometric model is compressed. As needed, the data for the compressed triangle mesh and associated operation data are output. Furthermore, a necessary process, such as a compression process, is also performed for geometric data for the 3D geometric model, and the resultant data are either stored or output. For the decompression of compressed data, the compressed triangle mesh is decompressed using the method employed for compression, and a triangle mesh is generated. The associated data are then employed to perform the reverse operation for the topological transformation of the triangle mesh, and the topological data for the original 3D geometric model are recovered. If the geometric data are also compressed, they are decompressed and are employed with the topological data to recover the 3D geometric model. Another patent involves embedding information in a three-dimensional geometric model. Information is embedded in a three-dimensional geometric model in a visible or invisible state by changing geometric parameters of the model. The three-dimensional geometric model comprises polyhedrons, lines, a set of points, or curved surfaces which are primitives of the model. Each primitive is defined by a geometric parameter. The geometric shape of a three-dimensional geometric model is defined by a set of many geometric parameters. The information is embedded by changing the geometric parameters of a plurality of primitives constituting the model.

Career Highlights

Ohbuchi is currently employed at International Business Machines Corporation (IBM), where he continues to innovate and develop new technologies. His work has been instrumental in advancing the field of geometric modeling and

Profile summary based on public USPTO records.

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