Maruhachi Muramatsu, Inc.

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USPTO Granted Patents = 3

Trademarks = 2

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Masayoshi Yamaguchi (2 out of 14 patents)

Yoshinori Hokari (1 out of 1 patent)

Keita Aoshima (1 out of 1 patent)

4. Aya Sekine (1 out of 1 patent)

5. Natsuko Narawa (1 out of 1 patent)

6. Harumi Sugiya (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 12735451 - Peptide, cell growth promoter, protein production promoter, culture medium, cell growth method using peptide, and protein production method using peptide (2026-09-15),

2. 10463705 - Method for treating disease associated with transcription activation by NF-κB (2019-11-05),

3. 9937216 - Method for suppressing proliferation and/or inducing apoptosis of cancer cells (2018-04-10),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#116 in Shizuoka

#8,938 in Japan

Shizuoka, Japan

Maruhachi Muramatsu, Inc.

Forward Citations = 2

6 inventors:

Masayoshi Yamaguchi (2 out of 14 patents)

Yoshinori Hokari (1 out of 1 patent)

Keita Aoshima (1 out of 1 patent)

4. Aya Sekine (1 out of 1 patent)

5. Natsuko Narawa (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Maruhachi Muramatsu, Inc.. Retrieved from https://idiyas.com/company/maruhachi-muramatsu

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]