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For the Inventor, By the Inventor

Tokyo, Japan

Dragon Co., Ltd.


USPTO Granted Patents = 14

% Expired Patents = 85.7

Forward Citations = 1,022

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1 inventor (with patents filed for the assignee):

goldMedal Haruo Inoue (14 out of 37 patents)


14 patents:

1. 7351143 - Symbol displaying unit for a game machine (2008-04-01),
2. 7344442 - Symbol display device for game machine (2008-03-18),
3. 7311602 - Symbol-displaying device for a game machine (2007-12-25),
4. 7214132 - Symbol display apparatus for game machine (2007-05-08),
5. 6988731 - Symbol display device for game machine (2006-01-24),
6. 6942572 - Symbol display device and game machine (2005-09-13),
7. 6923441 - Symbol display device for game machine (2005-08-02),
8. 6905408 - Symbol display device for game machine (2005-06-14),
9. 6893018 - Game machine (2005-05-17),
10. 6880826 - Symbol display apparatus for game machine (2005-04-19),
11. 6855056 - Symbol display device for game machine (2005-02-15),
12. 6802507 - Rotary reel unit for game machine (2004-10-12),
13. 6726204 - Symbol display device for game machine (2004-04-27),
14. 6715756 - Symbol display device for game machine (2004-04-06),
Company Overview
Dragon Co., Ltd., based in Tokyo, specializes in advanced technology solutions, focusing on innovative developments in the fields of electronics and software. The company is known for its contributions to various sectors, including telecommunications and consumer electronics, leveraging cutting-edge research to enhance product performance and user experience. With a commitment to quality and innovation, Dragon Co., Ltd. aims to lead in the technology landscape, addressing the evolving needs of its global clientele.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Dragon Co., Ltd. USPTO Patent Assignee Logo
14 Patents

#1,596 in Tokyo

#3,577 in Japan

#42,199 in the World

Tokyo, JP
Tokyo, Japan

Dragon Co., Ltd.

Forward Citations = 1,022

1 inventor:

goldMedal Haruo Inoue (14 out of 37 patents)

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