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For the Inventor, By the Inventor

Osaka, Japan

Sunstar Kabushiki Kaisha

Calculating rank
USPTO Granted Patents = 35

% Expired Patents = 2.9



Forward Citations = 523

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81 inventors (with patents filed for the assignee):

goldMedal Shigeki Mori (5 out of 7 patents)

silverMedal Kenji Hasegawa (4 out of 56 patents)

bronzeMedal Tsutomu Takatsuka (4 out of 4 patents)

4.  Takao Makishima (3 out of 3 patents)

5.  Kazumi Oishi (3 out of 4 patents)

6.  Yasuhiro Katsuragi (3 out of 4 patents)

7.  Akira Nakao (2 out of 12 patents)

8.  Kunio Sugihara (2 out of 4 patents)

9.  Kanetsugu Yoshiki (2 out of 2 patents)

10.  Hiroshi Furumichi (2 out of 2 patents)

11.  Toshio Satoh (2 out of 26 patents)

12.  Chiho Makino (2 out of 2 patents)

13.  Toru Eguchi (2 out of 2 patents)

14.  Masakazu Nakamura (2 out of 3 patents)

15.  Hidehiko Ohtsuki (2 out of 2 patents)


Core Competencies:
Oral Composition
Toothpaste
Toothbrush
Dental Adhesive
Periodontal Disease
Syringe
Hair Dyeing Agent
Cosmetic Composition
Mouthpiece
Pharmaceutical Compositions
Vitamin C Emulsion
Ointment Base

35 patents:

1. 7300645 - Oral composition comprising isomalt and remineralizing enhancing agent (2007-11-27),
2. 6497858 - Method of remineralizing teeth (2002-12-24),
3. 6471946 - Oral composition (2002-10-29),
4. 6113887 - Toothpaste composition (2000-09-05),
5. D387206 - toothbrush head (1997-12-09),
6. D383608 - Toothbrush (1997-09-16),
7. 5489625 - Dental adhesive coating base composition and oral composition (1996-02-06),
8. D359623 - Toothbrush (1995-06-27),
9. 5348738 - Oral composition with active water insoluble polymer (1994-09-20),
10. 5303852 - Viscous liquid-dispensing container having a resilient follower (1994-04-19),
11. 5292528 - Oral Composition (1994-03-08),
12. 5266306 - Oral composition (1993-11-30),
13. 5257434 - Toothbrush (1993-11-02),
14. 5223404 - Composition for testing periodontal diseases (1993-06-29),
15. 5209882 - Means and method for forming syringe (1993-05-11),
Company Overview
Sunstar Kabushiki Kaisha, headquartered in Osaka, Japan, is a prominent player in the oral care and health products sector. The company specializes in the development and manufacturing of a wide range of dental hygiene products, including toothpaste, mouthwash, and dental floss, aimed at promoting oral health and hygiene. Sunstar also engages in research and innovation in the fields of personal care and medical devices, contributing to advancements in health and wellness solutions globally.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Sunstar Kabushiki Kaisha USPTO Patent Assignee Logo
35 Patents

#226 in Osaka

#2,133 in Japan

#19,187 in the World

Osaka, JP
Osaka, Japan

Sunstar Kabushiki Kaisha

Forward Citations = 523

81 inventors:

goldMedal Shigeki Mori (5 out of 7 patents)

silverMedal Kenji Hasegawa (4 out of 56 patents)

bronzeMedal Tsutomu Takatsuka (4 out of 4 patents)

4.  Takao Makishima (3 out of 3 patents)

5.  Kazumi Oishi (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sunstar Kabushiki Kaisha. Retrieved from https://idiyas.com/company/sunstar-kabushiki-kaisha

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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