Liquid Gas Co., Ltd.

Calculating rank

USPTO Granted Patents = 4

% Expired Patents = 25.0

Forward Citations = 37

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11 inventors (with patents filed for the assignee):

Akira Hirano (3 out of 58 patents)

Masashi Nishigaki (3 out of 7 patents)

Tsuyoshi Tsurutani (3 out of 7 patents)

4. Hisao Ohnishi (2 out of 38 patents)

5. Masamichi Ippommatsu (2 out of 25 patents)

6. Masahide Tsujishita (2 out of 3 patents)

7. Masamichi Ipponmatsu (1 out of 6 patents)

8. Tetsuro Agawa (1 out of 7 patents)

9. Katsuhiko Okada (1 out of 4 patents)

10. Kouji Shinohara (1 out of 2 patents)

11. Yoshitaka Konishi (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 6938495 - Method of measuring fluid flow (2005-09-06),

2. 6914087 - Process for producing powder coating composition, powder coating composition, and method of coating film formation (2005-07-05),

3. 5979245 - Method of measuring fluid flow by analyzing the fluorescent emissions (1999-11-09),

4. 5376347 - Uniform inorganic micropheres and production thereof (1994-12-27),

Company Overview

Liquid Gas Co., Ltd. is a leading provider of liquefied petroleum gas (LPG) solutions. With over 20 years of experience in the industry, we offer a wide range of high-quality LPG products and services to commercial, industrial, and residential customers. Our commitment to safety, reliability, and customer satisfaction sets us apart from the competition. Contact us today to learn more about how we can meet your LPG needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#808 in Osaka

#7,590 in Japan

Osaka, Japan

Liquid Gas Co., Ltd.

Forward Citations = 37

11 inventors:

Akira Hirano (3 out of 58 patents)

Masashi Nishigaki (3 out of 7 patents)

Tsuyoshi Tsurutani (3 out of 7 patents)

4. Hisao Ohnishi (2 out of 38 patents)

5. Masamichi Ippommatsu (2 out of 25 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Liquid Gas Co., Ltd.. Retrieved from https://idiyas.com/company/liquid-gas-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]