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Kanagawa, Japan

Cellseed, Inc.

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USPTO Granted Patents = 15

% Expired Patents = 40.0

EPO Patents = 22

Trademarks = 4

Forward Citations = 22

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38 inventors (with patents filed for the assignee):

Masayuki Yamato (9 out of 18 patents)

Kazunori Kataoka (5 out of 25 patents)

Akihiko Kikuchi (4 out of 10 patents)

4. Teruo Okano (3 out of 15 patents)

5. Kohji Nishida (2 out of 22 patents)

6. Teruo Okano (2 out of 34 patents)

7. Masato Sato (2 out of 7 patents)

8. Manabu Mizutani (2 out of 3 patents)

9. Hiroya Watanabe (2 out of 4 patents)

10. Hiromi Kojima (1 out of 2 patents)

11. Yoshiki Sawa (1 out of 22 patents)

12. Tatsuya Shimizu (1 out of 30 patents)

13. Kenji Yoneda (1 out of 7 patents)

14. Shigeru Miyagawa (1 out of 14 patents)

15. Isao Ishikawa (1 out of 3 patents)

15 patents: Sort by Forward Citations

1. 12097302 - Method for producing a cultured cell sheet for tissue regeneration (2024-09-24),

2. 10533158 - Cultured cell sheet, production method thereof, and application method thereof (2020-01-14),

3. 10434219 - Method of treatment using corneal epithelium forming cell sheets (2019-10-08),

4. 10368980 - Middle ear mucosa-like cell sheet, process of producing the same and method of using the same (2019-08-06),

5. 9981064 - Regenerated corneal endothelial cell sheets, processes for producing the same, and methods of using the same (2018-05-29),

6. 9889228 - Cultured cell sheet, production method, and tissue repair method using thereof (2018-02-13),

7. 9598668 - Temperature-responsive cell culture substrate and method for producing the same (2017-03-21),

8. 9587222 - Three-dimensional tissue structure (2017-03-07),

9. 9114192 - Cultured periodontal ligament cell sheet, process for producing the same and method of use thereof (2015-08-25),

10. 9012211 - Harvested sample preparation personal box and system and method of harvested sample preparation (2015-04-21),

11. 8889417 - Epidermal cultured cell sheet, multi-layered cultured skin sheet and processes for producing those sheets (2014-11-18),

12. 8642338 - Anterior ocular segment related cell sheets, three-dimensional structures, and processes for producing the same (2014-02-04),

13. 8557583 - Cell culture support and manufacture thereof (2013-10-15),

14. 7632656 - High performance liquid chromatography with an aqueous mobile phase for analysis of drug and its metabolite (2009-12-15),

15. 7405078 - Bed material for cell culture, method for co-culture of cell and co-cultured cell sheet obtainable therefrom (2008-07-29),

Company Overview

Cellseed, Inc. is a biotechnology company based in Kanagawa, Japan, specializing in regenerative medicine and cell therapy. The organization focuses on developing innovative technologies for cell-based therapies, particularly in the fields of tissue engineering and regenerative treatments. Cellseed aims to address unmet medical needs through its advanced research in cell culture and manipulation, contributing to the future of personalized medicine and enhancing patient care in various therapeutic areas.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

15 Patents

#115 in Kanagawa

#3,447 in Japan

#39,959 in the World

Kanagawa, Japan

Cellseed, Inc.

Forward Citations = 22

38 inventors:

Masayuki Yamato (9 out of 18 patents)

Kazunori Kataoka (5 out of 25 patents)

Akihiko Kikuchi (4 out of 10 patents)

4. Teruo Okano (3 out of 15 patents)

5. Kohji Nishida (2 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cellseed, Inc.. Retrieved from https://idiyas.com/company/cellseed

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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