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Yamaguchi, Japan

Sumitomo Metal Ceramics Inc.

USPTO Granted Patents = 15

Forward Citations = 205

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47 inventors (with patents filed for the assignee):

Junzo Fukuta (4 out of 13 patents)

Masashi Fukaya (4 out of 13 patents)

Hideaki Araki (4 out of 7 patents)

4. Tohru Nomura (3 out of 10 patents)

5. Yoshiyuki Miyase (3 out of 9 patents)

6. Takashi Nagasaka (2 out of 34 patents)

7. Koichi Uno (2 out of 4 patents)

8. Takamasa Okumura (2 out of 2 patents)

9. Shizuki Hashimoto (2 out of 2 patents)

10. Toshio Nozaki (2 out of 3 patents)

11. Akihiko Naito (2 out of 3 patents)

12. Takashi Takahashi (1 out of 57 patents)

13. Keiichi Yano (1 out of 42 patents)

14. Akira Morozumi (1 out of 24 patents)

15. Kazuo Kimura (1 out of 16 patents)

15 patents: Sort by Forward Citations

1. 6074893 - Process for forming fine thick-film conductor patterns (2000-06-13),

2. 5709927 - Thick film circuit board (1998-01-20),

3. 5675181 - Zirconia-added alumina substrate with direct bonding of copper (1997-10-07),

4. 5665459 - Low-temperature fired ceramic circuit substrate and thick-film paste for (1997-09-09),

5. 5660781 - Process for preparing glass ceramic green sheets (1997-08-26),

6. 5627344 - Multilayer ceramic circuit substrate, process for producing the same, (1997-05-06),

7. 5597644 - Ceramic circuit board and process for producing same (1997-01-28),

8. 5543661 - Semiconductor ceramic package with terminal vias (1996-08-06),

9. 5470412 - Process for producing a circuit substrate (1995-11-28),

10. 5463248 - Semiconductor package using an aluminum nitride substrate (1995-10-31),

11. 5459113 - Aluminum nitride powder capable of forming colored sintered body and (1995-10-17),

12. 5456778 - Method of fabricating ceramic circuit substrate (1995-10-10),

13. 5414300 - Lid for semiconductor package and package having the lid (1995-05-09),

14. 5397918 - Ceramic package for housing a semiconductor device (1995-03-14),

15. 5156903 - Multilayer ceramic substrate and manufacture thereof (1992-10-20),

Company Overview

Sumitomo Metal Ceramics Inc., based in Yamaguchi, Japan, specializes in the development and manufacturing of advanced ceramic materials and components. The company focuses on high-performance ceramics that are utilized across various industries, including electronics, automotive, and industrial applications. With a commitment to innovation, Sumitomo Metal Ceramics leverages its expertise in material science to create solutions that enhance product performance and reliability, contributing to advancements in technology and engineering.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

15 Patents

#8 in Yamaguchi

#3,447 in Japan

#39,959 in the World

Yamaguchi, Japan

Sumitomo Metal Ceramics Inc.

Forward Citations = 205

47 inventors:

Junzo Fukuta (4 out of 13 patents)

Masashi Fukaya (4 out of 13 patents)

Hideaki Araki (4 out of 7 patents)

4. Tohru Nomura (3 out of 10 patents)

5. Yoshiyuki Miyase (3 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Metal Ceramics Inc.. Retrieved from https://idiyas.com/company/sumitomo-metal-ceramics

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

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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