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Osaka Sanso Kogyo Ltd.

USPTO Granted Patents = 20

Forward Citations = 196

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45 inventors (with patents filed for the assignee):

Akira Makihara (6 out of 6 patents)

Takahiko Kijima (5 out of 5 patents)

Edward Frederick Ezell (3 out of 6 patents)

4. Shigeki Hayashi (3 out of 19 patents)

5. Yoshiro Matsumoto (3 out of 3 patents)

6. Junichi Nishizawa (3 out of 48 patents)

7. Yasuyuki Kamei (2 out of 2 patents)

8. Minoru Sasabe (2 out of 3 patents)

9. Toshio Nagatsuka (2 out of 2 patents)

10. Taichi Tagawa (2 out of 3 patents)

11. Shigeo Matsui (2 out of 2 patents)

12. Hiroshi Nakamura (1 out of 43 patents)

13. Tadahiro Ohmi (1 out of 201 patents)

14. Yoshihiko Kawai (1 out of 24 patents)

15. Ken Ohmae (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 7025870 - Method for analyzing the oxygen concentration of a gas (2006-04-11),

2. 6165275 - Atmospheric gas generator for heat treatment (2000-12-25),

3. 616527 - Atmospheric gas generator for heat treatment (2000-12-26),

4. 6024922 - Method of controlling an oxygen analyzer of the Hersch galvanic type (2000-02-15),

5. 5971609 - Method of measuring the dew point or frost point of a gas having low (1999-10-26),

6. 5827949 - Method and system for measuring external leakage (1998-10-27),

7. 5667133 - Method and apparatus for forming an oxide passivation film on a weld (1997-09-16),

8. 5615954 - Apparatus for measuring the dew point or frost point of a gas having low (1997-04-01),

9. 5482371 - Method and apparatus for measuring the dew point and/or frost point of a (1996-01-09),

10. 5470154 - Method of cleaning the reflector mirror in an optical dew point meter (1995-11-28),

11. 5407492 - Process for forming passivated film (1995-04-18),

12. 5393403 - Probe using a mixed sub-electrode for measuring the activity of carbon (1995-02-28),

13. 5385611 - Apparatus for forming resin coating on surface of article having (1995-01-31),

14. 5295621 - Method of soldering using a special atmospheric gas (1994-03-22),

15. 5052818 - Method of and apparatus for measuring very low water content in gas (1991-10-01),

Osaka Sanso Kogyo Ltd. is a leading provider of industrial gases, chemicals, and equipment in Japan. With over 50 years of experience in the industry, the company offers a wide range of products and services to meet the needs of various sectors, including manufacturing, healthcare, and electronics. Committed to quality and innovation, Osaka Sanso Kogyo Ltd. strives to deliver cutting-edge solutions to its customers and contribute to a sustainable future.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

20 Patents

#278 in Osaka

#2,888 in Japan

#30,352 in the World

Osaka Sanso Kogyo Ltd.

Forward Citations = 196

45 inventors:

Akira Makihara (6 out of 6 patents)

Takahiko Kijima (5 out of 5 patents)

Edward Frederick Ezell (3 out of 6 patents)

4. Shigeki Hayashi (3 out of 19 patents)

5. Yoshiro Matsumoto (3 out of 3 patents)

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