% Expired Patents = 75.0

Forward Citations = 69

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8 inventors (with patents filed for the assignee):

Yoshinori Ishii (2 out of 4 patents)

Takeshi Yamamoto (2 out of 3 patents)

Takao Uesugi (2 out of 3 patents)

4. Koichi Watanabe (2 out of 4 patents)

5. Takashi Matsuda (1 out of 186 patents)

6. Shokyu Gen (1 out of 15 patents)

7. Tatsuya Kawai (1 out of 5 patents)

8. Yoshito Ikada (1 out of 7 patents)

4 patents: Sort by Forward Citations

1. 7045216 - Polarizing plate (2006-05-16),

2. 6985292 - Polarizing plate and liquid-crystal display containing the same (2006-01-10),

3. 6713166 - Laminating film and laminate (2004-03-30),

4. 4844067 - Sucrose fatty acid ester coated suture (1989-07-04),

Company Overview

Gunze Co., Ltd. is a Japanese company that specializes in manufacturing and distribution of various textiles products. With over 120 years of industry experience, Gunze is known for its high-quality fabrics, including underwear, outerwear, and sportswear. The company also offers functional materials, such as those with UV protection and moisture-wicking properties. Gunze aims to provide innovative and comfortable textiles that cater to the evolving needs of customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#1 in Ayabe

#7,588 in Japan

Ayabe, Japan

Gunze Co., Ltd.

Forward Citations = 69

8 inventors:

Yoshinori Ishii (2 out of 4 patents)

Takeshi Yamamoto (2 out of 3 patents)

Takao Uesugi (2 out of 3 patents)

4. Koichi Watanabe (2 out of 4 patents)

5. Takashi Matsuda (1 out of 186 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gunze Co., Ltd.. Retrieved from https://idiyas.com/company/gunze-company

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]