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For the Inventor, By the Inventor

Tokyo, Japan

Chikao Ikenaga

This inventor holds 60 USPTO granted patents and 13 published patent applications and 10 EPO patents, primarily in Vapor Deposition Masks (CPC class C23C). Top assignees: Dai Nippon Printing Co., Ltd., Nitto-Denko Corporation, Alps Electric Co., Ltd.. Active years: 2004-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikao Ikenaga. Retrieved from https://idiyas.com/inventor/chikao-ikenaga

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

USPTO Granted Patents = 60 

% Patents Active = 86.7

 

Average Co-Inventor Count = 2.6

ph-index = 8

Forward Citations = 227(Granted Patents)

Forward Citations (Not Self Cited) = 204(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Shinjuku-Ku, JP (2006 - 2010)
  • Kitamoto, JP (2010 - 2017)
  • Tokyo-to, JP (2004 - 2018)
  • Tokyo, JP (2004 - 2024)

Company Filing History:

goldMedal59 out of 3,208 
 
Dai Nippon Printing Co., Ltd.
 patents
silverMedal5 out of 3,946 
 
Nitto-Denko Corporation
 patents
bronzeMedal1 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
4. 1 out of 73 
 
Dai Nippon Printing
 patents
where one patent can have more than one assignee

Years Active: 2004-2026

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Areas of Expertise:
Vapor Deposition Mask
Production Method
Deposition Mask Packaging
Quality Determination
Metal Plate
Manufacturing Method
Electronic Device
Mask Support Mechanism
Organic Device
Inspection Method
60 patents (USPTO):Explore Patents
1. 12540385 - Production method for metal plates for vapor deposition masks (2026-02-03),
2. 12508797 - Deposition mask package and deposition mask packaging method (2025-12-30),
3. 12480200 - Method of quality determining of deposition mask, method of manufacturing deposition mask, method of manufacturing deposition mask device, method of selecting deposition mask, and deposition mask (2025-11-25),
4. 12227823 - Metal plate for producing vapor deposition masks, production method for metal plates, vapor deposition mask, production method for vapor deposition mask, and vapor deposition mask device comprising vapor deposition mask (2025-02-18),
5. 12117727 - Metal plate for manufacturing deposition mask and manufacturing method for metal plate, and deposition mask and manufacturing method for deposition mask (2024-10-15),
6. 12109778 - Deposition mask package and deposition mask packaging method (2024-10-08),
7. 11939658 - Deposition mask, deposition mask apparatus, deposition apparatus, and manufacturing method for organic device (2024-03-26),
8. 11859274 - Deposition mask and method of manufacturing deposition mask (2024-01-02),
9. 11814719 - Method of manufacturing deposition mask, intermediate product to which deposition mask is allocated, and deposition mask (2023-11-14),
10. 11793014 - Electronic device, manufacturing method for electronic device, and deposition mask group (2023-10-17),
11. 11788181 - Deposition mask apparatus, mask support mechanism, and production method for deposition mask apparatus (2023-10-17),
12. 11739412 - Deposition mask and production method of deposition mask (2023-08-29),
13. 11733607 - Metal plate for producing vapor deposition masks, inspection method for metal plates, production method for metal plates, vapor deposition mask, vapor deposition mask device, and production method for vapor deposition masks (2023-08-22),
14. 11732361 - Metal plate for manufacturing deposition mask, method for manufacturing metal plate, deposition mask and method for manufacturing deposition mask (2023-08-22),
15. 11732347 - Standard mask apparatus and method of manufacturing standard mask apparatus (2023-08-22),

Title: A Visionary in Technology: The Innovative Journey of Chikao Ikenaga

Introduction:

Chikao Ikenaga stands out as a visionary inventor in the technology world, with a relentless pursuit of innovation and a passion for pushing the boundaries of what is possible. Based in Tokyo, JP, Ikenaga has made significant contributions to the field with a total of 54 patents to his name, showcasing his remarkable creativity and technical expertise.

Latest Patents:

Among his latest patents are groundbreaking inventions such as the deposition mask, deposition mask apparatus, deposition apparatus, and manufacturing method for organic device. These cutting-edge technologies demonstrate Ikenaga's ability to develop advanced solutions that have the potential to revolutionize various industries.

Career Highlights:

Throughout his career, Chikao Ikenaga has worked with esteemed companies such as Dai Nippon Printing Co., Ltd. and Nitto-denko Corporation, where he has played a pivotal role in driving innovation and spearheading research and development initiatives. His dedication to excellence and his innovative spirit have earned him recognition as a key figure in the tech sector.

Collaborations:

Ikenaga has collaborated with talented individuals in his field, including coworkers such as Sachiyo Matsuura and Chiaki Hatsuta. Together, they have combined their expertise to create groundbreaking technologies and pave the way for new advancements in the industry.

Conclusion:

In conclusion, Chikao Ikenaga's remarkable journey as an inventor exemplifies his unwavering commitment to innovation and his ability to envision and bring to life pioneering technologies. His contributions have not only pushed the boundaries of what is possible but have also inspired a new generation of inventors to dream big and strive for greatness in the world of technology.

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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