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Sumitomo Osaka Cement Co., Ltd.

USPTO Granted Patents = 20

EPO Patents = 6

Forward Citations = 0

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39 inventors (with patents filed for the assignee):

Norikazu Miyazaki (4 out of 95 patents)

Toru Sugamata (4 out of 60 patents)

Yu Kataoka (4 out of 20 patents)

4. Kosuke Okahashi (4 out of 13 patents)

5. Yumi Murata (3 out of 5 patents)

6. Syunsuke Suma (2 out of 11 patents)

7. Masahiro Nobe (2 out of 4 patents)

8. Tetsuro Itagaki (2 out of 12 patents)

9. Yuki Kugimoto (2 out of 5 patents)

10. Satoyoshi Inui (2 out of 2 patents)

11. Taku Ichiyoshi (2 out of 2 patents)

12. Hideki Ichimei (1 out of 11 patents)

13. Shingo Takano (1 out of 18 patents)

14. Yoshiki Yoshioka (1 out of 3 patents)

15. Nobuhiro Hidaka (1 out of 14 patents)

20 patents: Sort by Forward Citations

1. 12757683 - Electrostatic chuck having a dielectric substrate and method of manufacturing (2026-10-06),

2. 12740926 - Surface-modified zinc oxide particles, liquid dispersion, and cosmetic (2026-09-22),

3. 12730336 - Optical waveguide device, and optical modulation device and optical transmission apparatus using same (2026-09-08),

4. 12730264 - Optical waveguide element, and optical transmission apparatus and optical modulation device using same (2026-09-08),

5. 12724300 - Optical waveguide device, and optical modulation device and optical transmission apparatus using same (2026-09-01),

6. 12724298 - Optical waveguide device, and optical modulation device and optical transmission apparatus using same (2026-09-01),

7. 12723158 - Pigment and method for producing same, solution, metal hydroxyl amount evaluation method, and metal hydroxyl processing rate evaluation method (2026-09-01),

8. 12701962 - Electrostatic chuck device with an improved electrostatic chuck plate (2026-08-04),

9. 12693557 - Optical waveguide device, and optical modulation device and optical transmission apparatus using same (2026-07-28),

10. 12681341 - Optical waveguide element, optical modulator, optical modulation module, and optical transmission device (2026-07-14),

11. 12656654 - Optical waveguide element, optical modulator, optical modulation module, and optical transmission device (2026-06-16),

12. 12607897 - Optical waveguide element, optical modulator, optical modulation module, and optical transmission device (2026-04-21),

13. 12607810 - Lens unit, optical waveguide device, and optical transmission device (2026-04-21),

14. 12607803 - Optical waveguide element, and optical transmission apparatus and optical modulation device using same (2026-04-21),

15. 12597589 - Electrostatic chuck (2026-04-07),

Company Overview

Sumitomo Osaka Cement Co., Ltd. is a prominent player in the cement and building materials industry, specializing in the production of high-quality cement products and related materials. The company is engaged in advanced research and development initiatives aimed at enhancing the sustainability and performance of construction materials. With a strong focus on innovation, Sumitomo Osaka Cement contributes to various infrastructure projects across Japan and beyond, emphasizing eco-friendly practices and technological advancements in the sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

20 Patents

#1,343 in Tokyo

#2,944 in Japan

#31,233 in the World

Sumitomo Osaka Cement Co., Ltd.

Forward Citations = 0

39 inventors:

Norikazu Miyazaki (4 out of 95 patents)

Toru Sugamata (4 out of 60 patents)

Yu Kataoka (4 out of 20 patents)

4. Kosuke Okahashi (4 out of 13 patents)

5. Yumi Murata (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Osaka Cement Co., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-osaka-cement

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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