Tokyo, Japan

Kazuo Okada

This inventor holds 230 USPTO granted patents and 7 published patent applications and 6 EPO patents, primarily in Gaming Technology (CPC class 273143R). Top assignees: Aruze Gaming America, Inc., Universal Entertainment Corporation, Kabushiki Kaisha Universal. Active years: 1984-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Okada. Retrieved from https://idiyas.com/inventor/kazuo-okada

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

Calculating rank
USPTO Granted Patents = 230 

% Patents Active = 67.0

 

Average Co-Inventor Count = 1.2

ph-index = 33

Forward Citations = 5,843(Granted Patents)

Forward Citations (Not Self Cited) = 5,598(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Minato, JP (1990)
  • Kamakura, JP (1990)
  • Tochigi, JP (1991)
  • Oyama, JP (1993)
  • Osaka, JP (2001)
  • Koutou-ku, JP (2011 - 2012)
  • Koto-ku, JP (2007 - 2015)
  • Hong Kong, CN (2014 - 2015)
  • Tokyo, JP (1984 - 2023)

Company Filing History:

goldMedal104 out of 326 
 
Aruze Gaming America, Inc.
 patents
silverMedal80 out of 693 
 
Universal Entertainment Corporation
 patents
bronzeMedal32 out of 57 
 
Kabushiki Kaisha Universal
 patents
4. 20 out of 149 
 
Aruze Corporation
 patents
5. 6 out of 23 
 
Aruze Co. Ltd.
 patents
6. 6 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
7. 4 out of 6 
 
Universal Co., Ltd.
 patents
8. 3 out of 20 
 
Universal Sales Co., Ltd.
 patents
9. 2 out of 24 
 
Aruze Gaming (Hong Kong) Limited
 patents
10. 2 out of 163 
 
Organo Corporation
 patents
11. 1 out of 2 
 
Aruza Gaming America, Inc.
 patents
12. 1 out of 102 
 
Fujirebio Inc.
 patents
13. 1 out of 3,781 
 
Renesas Technology Corp.
 patents
14. 1 out of 394 
 
Unitika Ltd.
 patents
15. 1 out of 1 
 
Universal Entertainment Corporation (Nee Aruze Corporation)
 patent
16. 1 out of 1 
 
Universal Entertainment Corporatrion
 patent
17. 1 out of 979 
 
Wms Gaming, Inc.
 patents
18. 4 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1984-2025

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Areas of Expertise:
Gaming Machine
Slot Machine
Game Information System
Chromatographic Separation
Peripheral Device
Bill Processing Unit
Game Control Method
Rendering Effect
Display Device
Currency Exchange Module
Illegal Action Detection
Game System
230 patents (USPTO):Explore Patents

Title: Kazuo Okada: Innovating the Gaming Industry in Tokyo

Introduction:

Kazuo Okada is an esteemed inventor hailing from Tokyo, Japan, renowned for his contributions to the gaming industry. With an impressive portfolio of 228 patents, Okada has consistently demonstrated his prowess in pushing the boundaries of gaming technology. This article delves into Okada's latest patents, career highlights, and collaborations, shedding light on his significant contributions to the field.

Latest Patents:

Among Kazuo Okada's recent patented inventions, the two notable gaming machines stand out. These machines feature a display that showcases a predetermined screen, including characters, during gameplay. Equipped with a touch panel sensor placed above the display, players can interact with the characters by detecting contact position. The CPU, utilized within these gaming machines, determines the contact position and contact mode, enabling dynamic image changes based on the interaction's outcome.

Career Highlights:

Throughout Okada's career, he has been associated with prominent companies and made substantial contributions to the gaming industry. Okada worked with Aruze Gaming America, Inc., a leading gaming equipment manufacturer. His role in advancing gaming technology and innovation has contributed significantly to their success. Additionally, Okada has contributed his expertise to Universal Entertainment Corporation, an influential gaming and entertainment conglomerate operating on a global scale.

Collaborations:

Kazuo Okada has had the privilege of collaborating with esteemed colleagues who have helped shape the industry. Noteworthy coworkers include Masumi Fujisawa and Kenta Kitamura. Together, they have contributed to the development of groundbreaking gaming technologies, combining their skills and expertise to create innovative gaming experiences for players worldwide.

Conclusion:

Kazuo Okada's career in the gaming industry has been marked by his remarkable innovation, as evidenced by his extensive patent portfolio. His inventiveness and expertise have revolutionized the gaming experience by integrating touch panel sensors and dynamic image changes in gaming machines. As Okada continues to contribute to the advancement of gaming technology, we eagerly await his future inventions and the impact they will have on the industry.

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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