Company Filing History:

13 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

1 out of 16,453

Panasonic Corporation

patents

Years Active: 1986-2010

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7680296 - Information embedding device and program for changing a number of points that exist on sides of a polygon (2010-03-16),

2. 7356700 - Digital watermark-embedding apparatus and method, digital watermark-detecting apparatus and method, and recording medium (2008-04-08),

3. 7315621 - Digital watermark-embedding apparatus, digital watermark-embedding method, and recording medium (2008-01-01),

4. 7187782 - Digital watermark-embedding apparatus, digital watermark-embedding method, and recording medium having recoded therein a program for performing the digital watermark-embedding method (2007-03-06),

5. 7142692 - Reproduction equipment, reproduction equipment specifying equipment, reproduction equipment specifying system and methods and recording media for said equipment and system (2006-11-28),

6. 7127614 - Justification authenticating system, personal certificate issuing system, and personal certificate (2006-10-24),

7. 7003666 - Apparatus and method for embedding information for tamper detection and detecting tamper and recording medium having program for carrying out the method recorded thereon (2006-02-21),

8. 6898297 - Digital watermark embedding method, digital watermark extracting method, recording medium, image recording device, and image replaying device (2005-05-24),

9. 6788821 - Digital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereon (2004-09-07),

10. 6728409 - Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon (2004-04-27),

11. 6693965 - Apparatus for and method of embedding and extracting digital information, and medium having program for carrying out the method recorded thereon (2004-02-17),

12. 6639997 - Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon (2003-10-28),

13. 6477276 - Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon (2002-11-05),

14. 4600862 - Discharge lamp operation apparatus (1986-07-15),

Title: The Innovative Mind of Takashi Katsura

Introduction

Takashi Katsura is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of information technology, particularly in the area of digital watermarking and information embedding. With a total of 14 patents to his name, Katsura's work has had a lasting impact on how information is processed and secured.

Latest Patents

Katsura's latest patents include an information embedding device and a program for changing the number of points that exist on the sides of a polygon. This innovative device performs information embedding by extracting vertices from vector data and modifying the number of points on the polygon's sides based on embedment information. Additionally, he has developed a method for reading this information by extracting points from the embedment data according to predetermined rules. Another notable patent involves a digital watermark-embedding apparatus and method, as well as a digital watermark-detecting apparatus and method. In this invention, a digital image signal is divided into blocks, which are then subjected to orthogonal transformation to produce several frequency components. Selected frequency components are manipulated according to an embedment signal generated from the embedment information.

Career Highlights

Throughout his career, Katsura has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field of digital information processing.

Collaborations

Katsura has collaborated with esteemed colleagues, including Hisashi Inoue and Kenichi Noridomi. These partnerships have fostered a creative environment that has led to the development of innovative solutions in their respective fields.

Conclusion

Takashi Katsura's contributions to the field of information technology are noteworthy and continue to influence the industry. His innovative patents and collaborations reflect his dedication to advancing technology and enhancing the way information is embedded and processed.

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