Location History:
- Chiba, JP (1988 - 1994)
- Ichihara, JP (1992 - 2006)
- Higashihiroshima, JP (2007 - 2009)
Company Filing History:
7 out of 25,530 
6 out of 6,892 Years Active: 1988-2009
Title: Innovations of Inventor Hideaki Yamada
Introduction
Hideaki Yamada is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of image processing, holding a total of 13 patents. His work focuses on enhancing image encoding methods and improving image apparatuses.
Latest Patents
One of Yamada's latest patents is an image encoding method and image apparatus. The objective of this invention is to provide an image encoding method that does not require changes to a decoder while offering benefits across various applications. This method involves altering a pixel with a tone value of 255, which corresponds to white, to a value beyond the maximum tone value in the opposite direction for black. This results in a ripple effect with a tone value exceeding 255 in the white areas of the image. By clipping this image at the tone value of 255, the occurrence of mosquito noise can be minimized. Another significant patent is an image processing apparatus designed to facilitate appropriate interpolation in halftone images that have been binarized through error diffusion. This apparatus detects skips in image reading signals and utilizes a multivalued image line buffer to store and process the data effectively.
Career Highlights
Throughout his career, Yamada has worked with prominent companies such as Sharp Corporation and Sumitomo Chemical Company, Limited. His experience in these organizations has contributed to his expertise in image processing technologies.
Collaborations
Yamada has collaborated with notable coworkers, including Masahiro Fukuyama and Keisaku Yamamoto. Their joint efforts have further advanced the innovations in image processing.
Conclusion
Hideaki Yamada's contributions to image processing through his patents and collaborations highlight his significant role as an inventor. His innovative methods continue to influence the field and improve image technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.