Location History:
- Tokyo, JP (2010)
- Setagaya, JP (2011)
- Setagaya-ku, JP (2009 - 2012)
Company Filing History:
Years Active: 2009-2012
Title: Innovations by Atushi Katayama
Introduction
Atushi Katayama is a notable inventor based in Setagaya-ku, Japan. He has made significant contributions to the field of digital watermarking, holding a total of 4 patents. His work focuses on enhancing the security and integrity of digital media through innovative watermarking techniques.
Latest Patents
Katayama's latest patents include a range of methods and devices related to digital watermarking. These patents encompass a digital watermark padding method, a digital watermark padding device, a digital watermark detecting method, and a digital watermark detecting device. His digital watermark embedding method involves sequentially obtaining each frame image of moving image data and frame display time. It generates a watermark pattern using watermark information, the frame display time, and watermark pattern switching information. The watermark pattern is then superimposed onto the frame image, creating watermark embedded moving image data. Additionally, his digital watermark detection method includes generating a difference image between the currently obtained frame image and a previously obtained frame image. This process allows for effective digital watermark detection and status output.
Career Highlights
Atushi Katayama is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of digital watermarking. His work has been instrumental in advancing the technology used to protect digital content.
Collaborations
Throughout his career, Katayama has collaborated with notable colleagues such as Takao Nakamura and Susumu Yamamoto. These collaborations have contributed to the development of his innovative patents and have enhanced the research environment in which he works.
Conclusion
Atushi Katayama's contributions to digital watermarking demonstrate his expertise and commitment to innovation. His patents reflect a deep understanding of the challenges in digital media security and offer practical solutions to enhance content protection.