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For the Inventor, By the Inventor

Osaka, Japan

Osaka Oxygen Industries, Ltd.


USPTO Granted Patents = 8

Forward Citations = 208

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27 inventors (with patents filed for the assignee):

goldMedal Sigeo Matsui (3 out of 3 patents)

silverMedal Susumu Sakaguchi (2 out of 9 patents)

bronzeMedal Yutaka Nakano (2 out of 2 patents)

4.  Naoaki Sasaki (2 out of 2 patents)

5.  Zenzi Hagiwara (2 out of 3 patents)

6.  Shigeru Suzuki (1 out of 7 patents)

7.  Shigeki Hayashi (1 out of 19 patents)

8.  Zenji Hagiwara (1 out of 15 patents)

9.  Yutaka Tsuchida (1 out of 16 patents)

10.  Toru Sato (1 out of 11 patents)

11.  Akira Kamei (1 out of 1 patent)

12.  Yamanaka, Yoshio (1 out of 1 patent)

13.  Ryoichiro Imai (1 out of 1 patent)

14.  Hisami Tokunaga (1 out of 1 patent)

15.  Takao Kawawa (1 out of 1 patent)


8 patents:

1. 4519813 - Process for extraction of highly purified oxygen (1985-05-28),
2. 4468238 - Process for removing a nitrogen gas from mixture comprising N.sub.2 and (1984-08-28),
3. 4451350 - Sensor for measuring density of oxygen in molten metal (1984-05-29),
4. 4331455 - Method of producing oxygen rich gas utilizing an oxygen concentrator (1982-05-25),
5. 4307067 - Process for deodorizing exhaust gas containing smelly components (1981-12-22),
6. 4215008 - Rare earth-containing alloys and method for purification of hydrogen gas (1980-07-29),
7. 4154364 - Thermally insulating containers for liquefied gases (1979-05-15),
8. 4141812 - Oxygen sensors (1979-02-27),
Company Overview
Osaka Oxygen Industries, Ltd. is a leading manufacturer of industrial gases and related equipment in Japan. With over 50 years of experience, we provide a wide range of products and services to various industries including healthcare, manufacturing, and research. Our commitment to quality and innovation has made us a trusted partner for our customers worldwide.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#543 in Osaka

#5,049 in Japan

Osaka, JP
Osaka, Japan

Osaka Oxygen Industries, Ltd.

Forward Citations = 208

27 inventors:

goldMedal Sigeo Matsui (3 out of 3 patents)

silverMedal Susumu Sakaguchi (2 out of 9 patents)

bronzeMedal Yutaka Nakano (2 out of 2 patents)

4.  Naoaki Sasaki (2 out of 2 patents)

5.  Zenzi Hagiwara (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Osaka Oxygen Industries, Ltd.. Retrieved from https://idiyas.com/company/osaka-oxygen-industries

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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