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Dwango Co., Ltd.

USPTO Granted Patents = 95

% Expired Patents = 5.3

EPO Patents = 2

Trademarks = 4

Forward Citations = 105

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60 inventors (with patents filed for the assignee):

Takashi Kojima (40 out of 101 patents)

Nobuo Kawakami (37 out of 40 patents)

Shinnosuke Iwaki (24 out of 28 patents)

4. Hiroaki Saito (22 out of 44 patents)

5. Kazuya Asano (10 out of 11 patents)

6. Kentarou Matsui (7 out of 7 patents)

7. Naoki Yamaguchi (7 out of 7 patents)

8. Kaisei Sakurai (7 out of 7 patents)

9. Kouichi Nakamura (6 out of 13 patents)

10. Toshihiro Shimizu (6 out of 7 patents)

11. Hiroki Shimomura (6 out of 6 patents)

12. Kazuomi Niwa (5 out of 5 patents)

13. Kenichi Miyazaki (3 out of 4 patents)

14. Shigeo Okajima (3 out of 3 patents)

15. Hiroto Tamura (3 out of 4 patents)

Core Competencies:

Content Distribution

Video Delivery

Virtual Processing

Display Medium

Communication Device

Augmented Reality

Content Generation

Comment Distribution

Server System

Video Synthesis

Information Processing

User Interface

95 patents: Sort by Forward Citations

1. 12506934 - Moving-image delivery system, playback device, playback method, program, and recording medium (2025-12-23),

2. 12488699 - Class system, viewing terminal, information processing method, and program (2025-12-02),

3. 12477166 - Content distribution system, content distribution method, and computer program (2025-11-18),

4. 12464177 - Video distribution device, video distribution method, and recording media (2025-11-04),

5. 12461592 - Communication assistance system, communication assistance method, and communication assistance program (2025-11-04),

6. 12431045 - Display medium, processing apparatus, program, and computer-readable recording medium provided with program recorded thereon (2025-09-30),

7. 12327490 - Content provision system, content provision method, and content provision program (2025-06-10),

8. 12292628 - Display medium, display assistance medium, processing device, program, and computer-readable recording medium where program is recorded (2025-05-06),

9. 12289501 - Management server, user terminal, gift system, and information processing method (2025-04-29),

10. 12244551 - System, method, and program for specifying character-string-based comment art (2025-03-04),

11. 12243120 - Content distribution system, content distribution method, and content distribution program (2025-03-04),

12. 12236538 - Viewing terminal, viewing method, viewing system, and program (2025-02-25),

13. 12184920 - Video distributing device, video distributing method, and recording media (2024-12-31),

14. 12183239 - Display medium, processing device, and processing program (2024-12-31),

15. 12155873 - Video distribution device, video distribution method, and video distribution program (2024-11-26),

Company Overview

Dwango Co., Ltd., headquartered in Tokyo, specializes in content distribution technologies that enhance video delivery and user interaction. The company focuses on innovative solutions in virtual processing and augmented reality, aiming to create immersive experiences across various display mediums. With a strong emphasis on communication devices and content generation, Dwango is at the forefront of developing platforms that facilitate comment distribution and user engagement, contributing significantly to the evolving landscape of digital content consumption.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

95 Patents

#559 in

#1,155 in

#8,111 in the World

Dwango Co., Ltd.

Forward Citations = 105

60 inventors:

Takashi Kojima (40 out of 101 patents)

Nobuo Kawakami (37 out of 40 patents)

Shinnosuke Iwaki (24 out of 28 patents)

4. Hiroaki Saito (22 out of 44 patents)

5. Kazuya Asano (10 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dwango Co., Ltd.. Retrieved from https://idiyas.com/company/dwango-company

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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