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For the Inventor, By the Inventor

Sapporo, Japan

Jig-Saw Inc.


USPTO Granted Patents = 4


Forward Citations = 0

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6 inventors (with patents filed for the assignee):

goldMedal Tsuyoshi Fujii (2 out of 4 patents)

silverMedal Hiroshi Tomita (1 out of 170 patents)

bronzeMedal Eriko Sugano (1 out of 1 patent)

4.  Toshiro Ishikawa (1 out of 2 patents)

5.  Kazuhiro Ozuchi (1 out of 1 patent)

6.  Daikazu Sato (1 out of 1 patent)


4 patents:

1. 12502070 - System, method, and program for testing visual function of test animals (2025-12-23),
2. 12452547 - Information processing apparatus, information processing method, and program (2025-10-21),
3. 11928453 - Control method, control device, and system (2024-03-12),
4. 10924719 - Head mounted type video presenting device including visible light wavelength converting unit (2021-02-16),
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USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#13 in

#7,573 in

Sapporo, JP
Sapporo, Japan

Jig-Saw Inc.

Forward Citations = 0

6 inventors:

goldMedal Tsuyoshi Fujii (2 out of 4 patents)

silverMedal Hiroshi Tomita (1 out of 170 patents)

bronzeMedal Eriko Sugano (1 out of 1 patent)

4.  Toshiro Ishikawa (1 out of 2 patents)

5.  Kazuhiro Ozuchi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jig-Saw Inc.. Retrieved from https://idiyas.com/company/jig-saw

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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