Katsumi Tokuda

This inventor holds 21 USPTO granted patents and 4 EPO patents, primarily in Content Distribution Systems. Top assignees: Panasonic Corporation, Matsushita Electric Industrial Co., Ltd., Matsushita Electric Co., Ltd.. Active years: 1997-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Tokuda. Retrieved from https://idiyas.com/inventor/katsumi-tokuda

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 21

% Patents Active = 57.1

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 3.4

ph-index = 8

Forward Citations = 202(Granted Patents)

Location History:

Mino, JP (1999 - 2005)
Toluca Lake, CA (US) (2006 - 2007)
Minoh, JP (2008)
Ikeda, JP (2007 - 2013)
Osaka, JP (1997 - 2015)

Company Filing History:

12 out of 16,454

Panasonic Corporation

patents

7 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

1 out of 31

Matsushita Electric Co., Ltd.

patents

4. 1 out of 13,338

Panasonic Intellectual Property Management Co., Ltd.

where one patent can have more than one assignee

Years Active: 1997-2015

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Areas of Expertise:

Content Reproducing

Multimedia Playback

Content Management

Digital Content

Rights Management

Data Processing

Audio Playback

Copyrighted Data

Server Device

Terminal Device

Content Distribution

Power Saving

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9106797 - Content reproducing device and content reproducing method (2015-08-11),

2. 8521651 - Digital content reproducing apparatus and method thereof (2013-08-27),

3. 8260712 - Multimedia-type contents reproduction device and reproduction method, and recording medium having stored thereon data used for the same (2012-09-04),

4. 8166555 - Content reproducing device and content preproducing method (2012-04-24),

5. 8010688 - Content use management system, content use management method, and client device (2011-08-30),

6. 7984508 - Contents using device, and contents using method (2011-07-19),

7. 7940935 - Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium (2011-05-10),

8. 7873987 - Content distribution system and distribution method, and content processing device and processing method (2011-01-18),

9. 7721088 - Terminal device, server device, and content distribution system (2010-05-18),

10. 7694149 - Method for judging use permission of information and content distribution system using the method (2010-04-06),

11. 7620811 - Server device and program management system (2009-11-17),

12. 7571488 - Rights management terminal, server apparatus and usage information collection system (2009-08-04),

13. 7493638 - Processing terminal, receiving terminal and received data processing system (2009-02-17),

14. 7395245 - Content usage management system and server used in the system (2008-07-01),

15. 7194091 - Content using system (2007-03-20),

Title: **Katsumi Tokuda: A Pioneer in Digital Content Technologies**

Introduction

Katsumi Tokuda is an innovative inventor based in Ikeda, Japan, known for his substantial contributions to digital content technologies. With a remarkable portfolio of 21 patents, Tokuda has made significant strides in advancing the way digital content is reproduced and managed.

Latest Patents

Among his latest innovations are two notable patents. The first is for a **content reproducing device and content reproducing method**. This invention includes a secure counter malfunction detection unit that manages playback based on detected malfunctions. It features a content playability judgment unit that concludes whether the content is playable, relying on information from a malfunctioning-state playback processing management unit. This ensures that even when there are issues, content playback is handled efficiently.

The second patent is for a **digital content reproducing apparatus and method thereof**. This device includes a user terminal equipped with a license purchase unit that secures usage rights based on specific time frames for content data. The terminal also encompasses an availability judgment unit, which appraises whether encrypted elements of the content are available. Additionally, it features a use status management component that tracks the consumption of replay rights while ensuring the user has an accurate reading of their content usage.

Career Highlights

Katsumi Tokuda has garnered experience working with prominent companies, including Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His career reflects a dedication to enhancing user experience in digital media through innovative technology.

Collaborations

Throughout his professional journey, Tokuda has had the opportunity to collaborate with distinguished colleagues such as Ryuichi Okamoto and Kouji Miura. These partnerships have played a significant role in advancing his projects and fostering innovation within the industry.

Conclusion

Katsumi Tokuda's contributions to digital content technology exemplify the power of innovation in enhancing user experience. With multiple patents to his name and collaborative efforts with leading professionals in the field, Tokuda continues to influence the realm of content reproduction and management. His pioneering work reinforces the critical importance of evolving technology in our digital age.

Profile summary based on public USPTO records.