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For the Inventor, By the Inventor

Osaka, Japan

Takahiro Nagai

This inventor holds 33 USPTO granted patents and 3 published patent applications and 3 EPO patents, primarily in Optical Recording Technology. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Matsushita Electric Industrial. Active years: 1998-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takahiro Nagai. Retrieved from https://idiyas.com/inventor/takahiro-nagai

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

USPTO Granted Patents = 33 

% Patents Active = 66.7


Average Co-Inventor Count = 4.4

ph-index = 12

Forward Citations = 556(Granted Patents)


Company Filing History:

goldMedal23 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
silverMedal9 out of 16,454 
 
Panasonic Corporation
 patents
bronzeMedal1 out of 33 
 
Matsushita Electric Industrial
 patents

Years Active: 1998-2013

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Areas of Expertise:
Optical Disk
Recording Apparatus
Data Processing
Defect Management
Encryption Device
Reproduction Apparatus
Information Recording Medium
Authentication System
Data Transfer
Playback Apparatus
Communication Apparatus
Usage Management
33 patents (USPTO):Explore Patents
1. 8494344 - Recording and playback apparatus (2013-07-23),
2. 8347128 - Data processing device and power control method (2013-01-01),
3. 8031869 - Information recording medium, usage management method, and usage management apparatus (2011-10-04),
4. 7949762 - Address managing method and communication apparatus (2011-05-24),
5. 7831831 - Authentication communication system, authentication communication apparatus, and authentication communication method (2010-11-09),
6. 7810129 - Video display apparatus and reproduction apparatus (2010-10-05),
7. 7610626 - Recording medium, recording apparatus, reading apparatus, and program and method therefore (2009-10-27),
8. 7555205 - Method for controlling defect of optical disk, optical disk recording device, and optical disk reproducing device (2009-06-30),
9. 7542568 - Encryption device a decrypting device a secret key generation device a copyright protection system and a cipher communication device (2009-06-02),
10. 7339869 - Optical disk and optical method (2008-03-04),
11. 7298844 - Recording/reproducing apparatus, data moving method, and data deletion method (2007-11-20),
12. 7209422 - Optical disc recording method and optical disc reproducing method (2007-04-24),
13. 7196994 - Information recording medium, information recording apparatus and information reproduction apparatus for the same (2007-03-27),
14. 7164644 - Optical disc, recording apparatus method, and reproduction apparatus and method (2007-01-16),
15. 7136335 - Information recording medium, recording apparatus, and reproduction apparatus (2006-11-14),

Title: The Innovative Contributions of Takahiro Nagai

Introduction

Takahiro Nagai, based in Osaka, Japan, is an accomplished inventor with an impressive portfolio of 33 patents. His work reflects a deep understanding of technology and innovation, particularly in the realm of recording and playback apparatuses and data processing devices.

Latest Patents

Among his latest patents is a "Recording and Playback Apparatus," designed to allow continued playback of content even after a playback time limit has expired. This innovative apparatus also includes functionality to output warning information when a stop instruction is received after the playback time limit. Another significant invention is a "Data Processing Device and Power Control Method," which efficiently manages power states during various operational modes. The device connects to a first display, indicating operational status while a power controller effectively manages electric power supply, enhancing user experience in recording operations.

Career Highlights

Takahiro has had a fruitful career, contributing his talents to notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experiences in these leading technology firms have honed his skills and allowed him to push the boundaries of innovation within the industry.

Collaborations

Throughout his career, Takahiro has collaborated with fellow inventors like Yuji Takagi and Shunji Ohara. These partnerships have fostered an environment of shared creativity and development, enabling the advancement of cutting-edge technologies and solutions.

Conclusion

Takahiro Nagai exemplifies a dedication to innovation, exemplified through his numerous patents and collaborative efforts. His contributions in the fields of recording technology and data processing continue to influence and drive advancements in the industry, making him a noteworthy figure among contemporary inventors.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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