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Sunstar Inc.

USPTO Granted Patents = 58

% Expired Patents = 8.6

CIPO Patents = 8

EPO Patents = 43

Trademarks = 8

Forward Citations = 763

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129 inventors (with patents filed for the assignee):

Masahiro Nishiura (7 out of 8 patents)

Keisuke Kato (4 out of 12 patents)

Yukinori Wada (4 out of 5 patents)

4. Naoki Tsurukawa (4 out of 4 patents)

5. Motonobu Matsumoto (4 out of 4 patents)

6. Shinya Sakurai (3 out of 6 patents)

7. Takashi Kusakari (3 out of 3 patents)

8. Mayumi Kotani (3 out of 3 patents)

9. Akihito Fujita (3 out of 5 patents)

10. Yasuhiro Kawai (2 out of 2 patents)

11. Hidekuni Takano (2 out of 3 patents)

12. Youko Sono (2 out of 2 patents)

13. Makoto Suwa (2 out of 2 patents)

14. Yasumitsu Shimizu (2 out of 2 patents)

15. Tsukasa Mitsui (2 out of 2 patents)

Core Competencies:

Electric Toothbrush

Oral Cleaning Device

Interdental Brush

Pharmaceutical Composition

Bactericidal Agent

Cosmetic Tool

Health Support Method

Anti-Obesity Composition

Periodontal Disease

Oral Care Instrument

Drug-Containing Hygiene Implement

Vibration Generating Device

58 patents: Sort by Forward Citations

1. 12697288 - Composition for oral cavity (2026-08-04),

2. 12495890 - Molded article for oral care product and oral care product (2025-12-16),

3. 12495888 - Interdental cleaning tool (2025-12-16),

4. 11478342 - Electric toothbrush (2022-10-25),

5. 11426351 - Process for producing a pharmaceutical composition containing micro particles (2022-08-30),

6. 10925387 - Toothbrush module, attachment for toothbrush, brushing assistance system, brushing evaluation system, brushing assistance device, and brushing assistance program (2021-02-23),

7. 10676505 - Tripeptides having angiotensin converting enzyme inhibitory activity and uses thereof (2020-06-09),

8. 10603332 - Anti-obesity composition (2020-03-31),

9. 10335441 - Oral composition containing bifidobacteria and cruciferous vegetable (2019-07-02),

10. 10314676 - Oral cleaning device (2019-06-11),

11. 10098434 - Sprayer (2018-10-16),

12. 10020719 - Linear actuator (2018-07-10),

13. 9801917 - Composition for improving blood sugar metabolism (2017-10-31),

14. 9737634 - Non-woven fabric containing bone prosthetic material (2017-08-22),

15. 9700556 - Method for producing indigo-plant leaf extract (2017-07-11),

Sunstar Inc. is a global company that specializes in the development and manufacturing of innovative healthcare, beauty, and industrial products. With a strong commitment to providing solutions for a better lifestyle, Sunstar offers a wide range of products including oral care, health and wellness, beauty and home care, and chemicals and engineering materials. Through continuous research and development, Sunstar aims to improve the quality of life for individuals and contribute to the well-being of communities worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

58 Patents

#171 in Osaka

#1,569 in Japan

#12,356 in the World

Sunstar Inc.

Forward Citations = 763

129 inventors:

Masahiro Nishiura (7 out of 8 patents)

Keisuke Kato (4 out of 12 patents)

Yukinori Wada (4 out of 5 patents)

4. Naoki Tsurukawa (4 out of 4 patents)

5. Motonobu Matsumoto (4 out of 4 patents)

Please report any incorrect information to [email protected]

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