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For the Inventor, By the Inventor

Tokyo, Japan

Masashi Shimoyama

This inventor holds 52 USPTO granted patents and 30 published patent applications and 2 EPO patents, primarily in Plating Technology. Top assignees: Ebara Corporation, Japan as Represented by Director General of Agency of Industrial Science. Active years: 1993-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masashi Shimoyama. Retrieved from https://idiyas.com/inventor/masashi-shimoyama

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

USPTO Granted Patents = 52 

% Patents Active = 98.1

 

Average Co-Inventor Count = 3.1

ph-index = 3

Forward Citations = 51(Granted Patents)

Forward Citations (Not Self Cited) = 50(Dec 10, 2025)


Location History:

  • Kanagawa, JP (1994)
  • Fujisawa, JP (2006)
  • Tokyo, JP (1993 - 2024)

Company Filing History:

goldMedal52 out of 2,576 
 
Ebara Corporation
 patents
silverMedal1 out of 90 
 
Japan as Represented by Director General of Agency of Industrial Science
 patents
where one patent can have more than one assignee

Years Active: 1993-2026

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Areas of Expertise:
Plating Apparatus
Plating Method
Air Bubble Removal
Electroplating Device
Paddle
Substrate Holder
Plating System
Resistance Measuring Module
Plating Analysis
Manufacturing Plate
Prediction Model
Storage Medium
52 patents (USPTO):Explore Patents
1. 12680187 - Plating apparatus (2026-07-14),
2. 12516437 - Method of plating and apparatus for plating (2026-01-06),
3. 12359338 - Plate, apparatus for plating, and method of manufacturing plate (2025-07-15),
4. 12351931 - Plating apparatus (2025-07-08),
5. 12351929 - Plating apparatus and plating method (2025-07-08),
6. 12344954 - Plating apparatus (2025-07-01),
7. 12331420 - Plating apparatus and plating method (2025-06-17),
8. 12270120 - Plating apparatus and plating method (2025-04-08),
9. 12221714 - Plating method and plating apparatus (2025-02-11),
10. 12163244 - Method of adjusting plating module (2024-12-10),
11. 12152312 - Plating apparatus and air bubble removing method of plating apparatus (2024-11-26),
12. 12077875 - Air bubble removing method of plating apparatus and plating apparatus (2024-09-03),
13. 11891715 - Paddle, processing apparatus having the paddle, and method of producing the paddle (2024-02-06),
14. 11773504 - Plating support system, plating support device, and recording medium (2023-10-03),
15. 11725296 - Plate, plating apparatus, and method of manufacturing plate (2023-08-15),

Title: The Innovations of Masashi Shimoyama: A Prolific Inventor from Tokyo

Introduction:

Masashi Shimoyama, a distinguished inventor hailing from Tokyo, Japan, has left a remarkable legacy in the field of technology and engineering. With an impressive portfolio of 40 patents to his name, Shimoyama's innovative spirit and dedication to advancing scientific knowledge are truly commendable.

Latest Patents:

Among his recent patents is a groundbreaking invention related to a paddle for processing apparatus. This paddle, designed to agitate processing liquid in a tank, features a unique honeycomb structure that improves mechanical strength and reduces interference with the electric field. Another noteworthy patent is a plating support system that utilizes simulation and numerical analysis to optimize the uniformity of plating film on substrates.

Career Highlights:

Throughout his career, Masashi Shimoyama has made significant contributions to companies such as Ebara Corporation and the Japan Agency for Science and Technology. His expertise in areas like electroplating and material science has led to the development of cutting-edge technologies with practical applications in various industries.

Collaborations:

Shimoyama has collaborated with talented individuals like Jumpei Fujikata and Mizuki Nagai, forging strong working relationships that have fostered innovation and shared knowledge. These collaborations have been instrumental in bringing his inventive ideas to fruition and pushing the boundaries of technological progress.

Conclusion:

In conclusion, Masashi Shimoyama stands out as a visionary inventor whose passion for innovation has led to the creation of impactful technologies. His groundbreaking patents and successful career trajectory exemplify his commitment to pushing the boundaries of scientific discovery and shaping the future of engineering.

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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