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For the Inventor, By the Inventor

Tokyo, Japan

Yuji Tomizawa

This inventor holds 23 USPTO granted patents and 2 published patent applications and 2 EPO patents, primarily in Ceramic Electronic Components. Top assignees: Taiyo Yuden Co., Ltd., Rikkyo Gakuin, Sumitomo Riko Company Limited. Active years: 1999-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Tomizawa. Retrieved from https://idiyas.com/inventor/yuji-tomizawa

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

USPTO Granted Patents = 23 

% Patents Active = 82.6

 

Average Co-Inventor Count = 3.1

ph-index = 4

Forward Citations = 42(Granted Patents)


Location History:

  • Takasaki, JP (2010 - 2013)
  • Saitama, JP (2015 - 2019)
  • Tokyo, JP (1999 - 2023)

Company Filing History:

goldMedal18 out of 1,769 
 
Taiyo Yuden Co., Ltd.
 patents
silverMedal3 out of 8 
 
Rikkyo Gakuin
 patents
bronzeMedal1 out of 371 
 
Sumitomo Riko Company Limited
 patents
4. 1 out of 35 
 
Taiyo Yuden Corp.
 patents
5. 1 out of 9 
 
Tokyo Printing Ink Mfg. Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1999-2026

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Areas of Expertise:
Ceramic Electronic Component
Multilayer Capacitor
Optical Information Medium
Thermoluminescent Phosphor
Manufacturing Method
Circuit Board
High-Density Recording
Resin Molded Product
Three-Dimensional Dose Distribution
Recording Laser Beam
Uneven Region
Substrate
23 patents (USPTO):Explore Patents
1. 12586726 - Multilayer ceramic electronic component and manufacturing method thereof (2026-03-24),
2. 12431292 - Multilayer ceramic electronic component with uneven region between external electrodes (2025-09-30),
3. 11562860 - Multi-layer ceramic electronic component, method of producing the same, and circuit board (2023-01-24),
4. 11557439 - Multi-layer ceramic electronic component (2023-01-17),
5. 11017952 - Multi-layer ceramic electronic component (2021-05-25),
6. 10522292 - Multi-layer ceramic capacitor and method of producing the same (2019-12-31),
7. 10497513 - Ceramic electronic component and method of producing the same (2019-12-03),
8. 10468188 - Ceramic electronic component and method of producing the same (2019-11-05),
9. 10408367 - Mesh-patterned resin molded product (2019-09-10),
10. 9181473 - Manganese-containing lithium triborate thermoluminescent phosphor, and method for producing same (2015-11-10),
11. 8932488 - Thermoluminescent phosphor and method of producing the same (2015-01-13),
12. 8704182 - Thermoluminescent layered product, thermoluminescent plate, method of producing thermoluminescent layered product, method of producing thermoluminescent plate and method of acquiring three-dimensional dose distribution of radiation (2014-04-22),
13. 8394480 - Optical information recording medium and manufacturing method therefor (2013-03-12),
14. 7835257 - Optical information recording medium (2010-11-16),
15. 7194751 - Optical information medium (2007-03-20),

Title: **Yuji Tomizawa: Innovator of Multi-Layer Ceramic Electronic Components**

Introduction

Yuji Tomizawa, based in Tokyo, Japan, is a prominent inventor with an impressive portfolio of 21 patents. His work focuses on the development of advanced electronic components, specifically multi-layer ceramic electronic components, which have significant applications in modern technology.

Latest Patents

Among his latest patents are groundbreaking innovations in multi-layer ceramic electronic components and methods for producing them. His patents detail the construction of ceramic bodies that boast unique features, including tapered surfaces that improve internal electrode exposure and enhance connectivity. These designs have been pivotal in advancing the efficiency and reliability of circuit boards used in various electronic devices.

Career Highlights

Throughout his career, Yuji Tomizawa has contributed significantly to the field of electronics. He has held positions at renowned companies, including Taiyo Yuden Co., Ltd., where he emphasized research and development of electronic components. Additionally, he has made academic contributions during his time at Rikkyo University, blending practical industry knowledge with academic inquiry.

Collaborations

Yuji has collaborated with notable colleagues such as Toru Fujii and Emiko Hamada, working together to push the boundaries of ceramic electronic component technology. These collaborations have yielded many advances, ultimately enhancing the capabilities and performance of the products they developed.

Conclusion

Yuji Tomizawa's innovations in multi-layer ceramic electronic components showcase his commitment to technological advancement and excellence in the field. His contributions continue to shape the future of electronics, reinforcing his position as a leading inventor in Tokyo and beyond. With 21 patents to his name, his legacy is firmly established within the landscape of modern innovation.

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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