% Expired Patents = 25.0

EPO Patents = 1

Forward Citations = 19

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9 inventors (with patents filed for the assignee):

Yoshiyuki Inaguma (3 out of 3 patents)

Mikio Nakashima (2 out of 6 patents)

Mamoru Nakashima (2 out of 4 patents)

4. Nobuo Yamamoto (1 out of 18 patents)

5. Yoshinori Satou (1 out of 7 patents)

6. Shigeki Komine (1 out of 6 patents)

7. Daisuke Mori (1 out of 4 patents)

8. Yujiro Eto (1 out of 1 patent)

9. Takuya Hirano (1 out of 5 patents)

4 patents: Sort by Forward Citations

1. 10128533 - Solid electrolyte material and lithium battery (2018-11-13),

2. 9711822 - Lithium-lanthanum-titanium oxide sintered material, solid electrolyte containing the oxide, and lithium air battery and all-solid lithium battery including the solid electrolyte (2017-07-18),

3. 9698430 - Lithium-lanthanum-titanium oxide sintered material, solid electrolyte containing the oxide, lithium air battery and all-solid lithium battery including the solid electrolyte, and method for producing the lithium-lanthanum-titanium oxide sintered material (2017-07-04),

4. 8228507 - Quantum entanglement generating system and method, and quantum entanglement generating and detecting system and method (2012-07-24),

Company Overview

The Gakushuin School Corporation is a prestigious educational institution in Japan, encompassing a range of schools from kindergarten through university level. Founded in 1847, Gakushuin has a long history of excellence in education and is known for its rigorous academic curriculum and emphasis on holistic student development. The corporation aims to cultivate future leaders who are equipped with both knowledge and character to contribute positively to society.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#3,053 in Tokyo

#7,579 in Japan

Tokyo, Japan

The Gakushuin School Corporation

Forward Citations = 19

9 inventors:

Yoshiyuki Inaguma (3 out of 3 patents)

Mikio Nakashima (2 out of 6 patents)

Mamoru Nakashima (2 out of 4 patents)

4. Nobuo Yamamoto (1 out of 18 patents)

5. Yoshinori Satou (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Gakushuin School Corporation. Retrieved from https://idiyas.com/company/gakushuin-school

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]

1 patent (EPO):

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]