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For the Inventor, By the Inventor

Tokyo, Japan

Surfcera Co., Ltd.


USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 3

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4 inventors (with patents filed for the assignee):

goldMedal Keiko Sasaki (3 out of 3 patents)

silverMedal Manabu Sasaki (3 out of 4 patents)

bronzeMedal Kasumi Koyama (3 out of 3 patents)

4.  Yukio Funai (3 out of 3 patents)


3 patents:

1. 6863829 - Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof (2005-03-08),
2. 6488978 - Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof (2002-12-03),
3. 6365193 - Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof (2002-04-02),
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USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#3,548 in Tokyo

#8,932 in Japan

Tokyo, JP
Tokyo, Japan

Surfcera Co., Ltd.

Forward Citations = 3

4 inventors:

goldMedal Keiko Sasaki (3 out of 3 patents)

silverMedal Manabu Sasaki (3 out of 4 patents)

bronzeMedal Kasumi Koyama (3 out of 3 patents)

4.  Yukio Funai (3 out of 3 patents)

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