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For the Inventor, By the Inventor

Nara, Japan

Tadashi Iwamatsu

This inventor holds 68 USPTO granted patents and 10 published patent applications and 2 EPO patents, primarily in Electron Emission Technology (CPC class H01J). Top assignees: Sharp Kabushiki Kaisha Corporation, Kanto Denka Kogyo Co., Ltd., Nobuyoshi Koshida. Active years: 1989-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Iwamatsu. Retrieved from https://idiyas.com/inventor/tadashi-iwamatsu

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

USPTO Granted Patents = 68 

% Patents Active = 60.3


Average Co-Inventor Count = 3.6

ph-index = 8

Forward Citations = 291(Granted Patents)

Forward Citations (Not Self Cited) = 281(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tenri, JP (1989 - 1990)
  • Nara, JP (1992 - 2012)
  • Osaka, JP (2012 - 2016)
  • Sakai, JP (2020 - 2024)

Company Filing History:

goldMedal68 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents
silverMedal1 out of 77 
 
Kanto Denka Kogyo Co., Ltd.
 patents
bronzeMedal1 out of 1 
 
Nobuyoshi Koshida
 patent
4. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-2025

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Areas of Expertise:
Electron Emission Element
Image Forming Apparatus
Ion Generation Apparatus
Electron Capture Detector
Cell Stimulation Device
Two-Component Developer
Electron Emitting Device
Electron Acceleration Layer
Light Emitting Device
Cooling Device
Charge Device
Analysis Device
68 patents (USPTO):Explore Patents
1. 12504399 - IMS analyzer (2025-12-23),
2. 11988634 - Ion generation apparatus and ion mobility analysis apparatus (2024-05-21),
3. 11971394 - Electron capture detector (2024-04-30),
4. 11587777 - Analysis device (2023-02-21),
5. 11551902 - Electron emitting element (2023-01-10),
6. 11485950 - Cell stimulation device, cell culture device, and cell stimulation method (2022-11-01),
7. 11397165 - Analyzer (2022-07-26),
8. 11205555 - Electron emission element and method for manufacturing same (2021-12-21),
9. 10782265 - Analysis apparatus (2020-09-22),
10. 10763068 - Electron emission element and method for same (2020-09-01),
11. 10727021 - Electron emission element, electrification apparatus, and image forming apparatus (2020-07-28),
12. 10692680 - Electron emission device and method for manufacturing the same (2020-06-23),
13. 10643815 - Electron emission device, method for manufacturing same, and method for manufacturing electronic device (2020-05-05),
14. 9307627 - Electron emitting device with electron acceleration layer containing conductive microparticles (2016-04-05),
15. 9304420 - Two-component developer, developing device, image forming apparatus, and image forming method (2016-04-05),

Title: Tadashi Iwamatsu: Pioneering Inventor from Nara, JP

Introduction:

Tadashi Iwamatsu, a man with a passion for innovation, is a true trailblazer in the world of invention. His relentless pursuit of pushing boundaries and commitment to excellence have made him a notable figure in the field of technology and patents.

Latest Patents:

Among his impressive portfolio of 66 patents, Tadashi Iwamatsu's latest inventions include the Electron Capture Detector and the Analysis Device. The Electron Capture Detector is a revolutionary device designed to detect samples with precision, while the Analysis Device incorporates advanced technology for accurate measurements and analysis.

Career Highlights:

Throughout his career, Tadashi Iwamatsu has made significant contributions to the industry through his groundbreaking inventions. Working at renowned companies like Sharp Kabushiki Kaisha Corporation, he has played a key role in driving innovation and shaping the future of technology.

Collaborations:

Tadashi Iwamatsu has collaborated with esteemed professionals in the field, including Hiroyuki Hirakawa and Nobuyuki Azuma. Together, they have worked on groundbreaking projects and research initiatives that have led to the development of cutting-edge technologies.

Conclusion:

In conclusion, Tadashi Iwamatsu's innovative spirit and unwavering dedication to his work have established him as a prominent inventor in the world of patents. His inventions continue to inspire and pave the way for future advancements in technology, solidifying his legacy as a pioneer in 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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