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For the Inventor, By the Inventor

Fujimino-shi, Japan

Kddi R&d Laboratories, Inc.

Calculating rank
USPTO Granted Patents = 21

% Expired Patents = 76.2


Forward Citations = 76

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55 inventors (with patents filed for the assignee):

goldMedal Sei Naito (3 out of 56 patents)

silverMedal Tomonobu Yoshino (3 out of 6 patents)

bronzeMedal Yasuyuki Nakajima (3 out of 30 patents)

4.  Takayuki Warabino (3 out of 5 patents)

5.  Hajime Nakamura (2 out of 55 patents)

6.  Shinichi Nomoto (2 out of 21 patents)

7.  Satoshi Konishi (2 out of 29 patents)

8.  Atsushi Koike (2 out of 60 patents)

9.  Masaru Sugano (2 out of 16 patents)

10.  Satoshi Miyaji (2 out of 6 patents)

11.  Kazunori Takeuchi (2 out of 2 patents)

12.  Sei Naitou (2 out of 2 patents)

13.  Hiromasa Yanagihara (2 out of 18 patents)

14.  Shinji Ota (2 out of 2 patents)

15.  Masayoshi Ohashi (2 out of 2 patents)


21 patents:

1. 10027454 - Communication apparatus, method for controlling same, base station apparatus, method for controlling same, and computer-readable storage medium (2018-07-17),
2. 9014268 - Video encoder and its decoder (2015-04-21),
3. 8780995 - Video encoding apparatus and video decoding apparatus (2014-07-15),
4. 8391170 - Communication characteristic measuring device adapted to wireless terminal (2013-03-05),
5. 8351721 - Image encoding device (2013-01-08),
6. 8264616 - Scene classification apparatus of video (2012-09-11),
7. 8208424 - Wireless base station for communications network (2012-06-26),
8. 8199832 - Video-signal switching apparatus (2012-06-12),
9. 8199818 - Intra prediction system of video encoder and video decoder (2012-06-12),
10. 7916171 - Classification apparatus for sport videos and method thereof (2011-03-29),
11. 7885191 - Load balance server and method for balancing load of presence information (2011-02-08),
12. 7697452 - Method and management apparatus for classifying congestion paths based on packet delay (2010-04-13),
13. 7609645 - Moving picture compression encoding transceiver apparatus (2009-10-27),
14. 7436890 - Quantization control system for video coding (2008-10-14),
15. 7429973 - Content display system and method (2008-09-30),
Company Overview
KDDI R&D Laboratories, Inc. is a prominent research and development entity based in Fujimino-shi, Japan, specializing in advanced telecommunications technologies. The organization focuses on a wide array of domains, including mobile communications, network infrastructure, and innovative services that enhance user experiences. By leveraging cutting-edge research, KDDI R&D Laboratories aims to drive the evolution of communication technologies and contribute to the development of a connected society, aligning with global trends in digital transformation.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Kddi R&d Laboratories, Inc. USPTO Patent Assignee Logo
21 Patents

#1 in Fujimino-shi

#2,866 in Japan

#29,999 in the World

Fujimino-shi, JP
Fujimino-shi, Japan

Kddi R&d Laboratories, Inc.

Forward Citations = 76

55 inventors:

goldMedal Sei Naito (3 out of 56 patents)

silverMedal Tomonobu Yoshino (3 out of 6 patents)

bronzeMedal Yasuyuki Nakajima (3 out of 30 patents)

4.  Takayuki Warabino (3 out of 5 patents)

5.  Hajime Nakamura (2 out of 55 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kddi R&d Laboratories, Inc.. Retrieved from https://idiyas.com/company/kddi-r-and-d-laboratories

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

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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