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For the Inventor, By the Inventor

Tokyo, Japan

Keigo Kasuya

This inventor holds 17 USPTO granted patents and 2 published patent applications. Top assignees: Hitachi High-Tech Corporation, Hitachi-High-Technologies Corporation, Hitachi, Ltd.. Active years: 2012-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keigo Kasuya. Retrieved from https://idiyas.com/inventor/keigo-kasuya

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

USPTO Granted Patents = 17 

% Patents Active = 88.2

Average Co-Inventor Count = 4.8

ph-index = 2

Forward Citations = 12(Granted Patents)


Location History:

  • Kokubunji, JP (2012 - 2014)
  • Tokyo, JP (2017 - 2024)

Company Filing History:

goldMedal11 out of 1,380 
 
Hitachi High-Tech Corporation
 patents
silverMedal5 out of 2,874 
 
Hitachi-High-Technologies Corporation
 patents
bronzeMedal1 out of 42,726 
 
Hitachi, Ltd.
 patents

Years Active: 2012-2025

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17 patents (USPTO):Explore Patents
1. 12494338 - Electron source, electron beam device, and method for manufacturing electron source (2025-12-09),
2. 12469665 - Charged particle beam device (2025-11-11),
3. 12469664 - Charged particle gun and charged particle beam system (2025-11-11),
4. 12400823 - Electron source, method of manufacturing the same, and electron beam apparatus using the same (2025-08-26),
5. 12394585 - Electron source, electron gun, and charged particle beam device (2025-08-19),
6. 11894211 - Electron beam apparatus and method for controlling electron beam apparatus (2024-02-06),
7. 11508544 - Thermoelectric field emission electron source and electron beam application device (2022-11-22),
8. 11322329 - Electron source, method for manufacturing the same, and electron beam device using the same (2022-05-03),
9. 10903037 - Charged particle beam device (2021-01-26),
10. 10804084 - Vacuum apparatus (2020-10-13),
11. 10707046 - Electron source and electron beam device using the same (2020-07-07),
12. 10586674 - Field emission electron source, method for manufacturing same, and electron beam device (2020-03-10),
13. 10522319 - Electron beam apparatus (2019-12-31),
14. 9837243 - Ion pump and charged particle beam device using the same (2017-12-05),
15. 8772735 - Charged particle beam apparatus, and method of controlling the same (2014-07-08),

Title: Keigo Kasuya - Innovative Inventor from Tokyo

Introduction: Keigo Kasuya is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Keigo Kasuya holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach.

Career Highlights: With over two decades of experience in the innovation industry, Keigo Kasuya has worked with leading research institutions and tech companies to develop cutting-edge solutions that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Keigo Kasuya has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Keigo Kasuya's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology, inspiring the next generation of inventors to push the boundaries of what is possible.

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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