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For the Inventor, By the Inventor

Osaka, Japan

Sasakura Engineering Co., Ltd.


USPTO Granted Patents = 17

% Expired Patents = 23.5



Trademarks = 2

Forward Citations = 79

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45 inventors (with patents filed for the assignee):

goldMedal Kunihiko Minami (4 out of 8 patents)

silverMedal Junji Mizutani (3 out of 3 patents)

bronzeMedal Masaaki Imai (3 out of 4 patents)

4.  Iwao Sawada (3 out of 3 patents)

5.  Toru Kannari (2 out of 3 patents)

6.  Shiro Ohno (2 out of 2 patents)

7.  Yasushi Nishimura (2 out of 15 patents)

8.  Masahiro Adachi (1 out of 71 patents)

9.  Koji Harada (1 out of 9 patents)

10.  Yo Fujimoto (1 out of 1 patent)

11.  Tatsuya Taguchi (1 out of 1 patent)

12.  Kazutaka Hiraoka (1 out of 4 patents)

13.  Yutaka Tamaura (1 out of 13 patents)

14.  Yoshiharu Horita (1 out of 3 patents)

15.  Koji Miyazaki (1 out of 6 patents)


17 patents:

1. 10329166 - Evaporative treatment method for aqueous solution (2019-06-25),
2. 9739504 - Steam generator and energy supply system using the same (2017-08-22),
3. 9048384 - Steam generation apparatus (2015-06-02),
4. 8051669 - Liquid evaporation cooling apparatus (2011-11-08),
5. 7351342 - Method for recovering fluorine-containing emulsifier (2008-04-01),
6. 7311799 - Hydrofluoric acid wastewater treatment method and device (2007-12-25),
7. 6675876 - Rotary cooling roller (2004-01-13),
8. 5156208 - Heat pipe unit and partition panel (1992-10-20),
9. 4929347 - Concentrating apparatus with reverse osmosis membrane (1990-05-29),
10. 4913809 - Concentrating apparatus with reverse osmosis membrane (1990-04-03),
11. 4805690 - Cooling roller (1989-02-21),
12. 4795532 - Aftertreatment method and apparatus for distilled water (1989-01-03),
13. 4724076 - Centrifugal separator for separating sludge in waste water (1988-02-09),
14. 4537248 - Air-cooled heat exchanger (1985-08-27),
15. 4417619 - Air-cooled heat exchanger (1983-11-29),
Company Overview
Sasakura Engineering Co., Ltd. is a prominent Japanese company based in Osaka, specializing in the development and manufacturing of advanced water treatment systems. The organization focuses on providing innovative solutions for desalination, water purification, and wastewater treatment, catering to both industrial and municipal needs. With a commitment to sustainability and environmental protection, Sasakura Engineering leverages cutting-edge technology to enhance water quality and availability, contributing to global efforts in resource management.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

17 Patents

#349 in Osaka

#3,227 in Japan

#35,918 in the World

Osaka, JP
Osaka, Japan

Sasakura Engineering Co., Ltd.

Forward Citations = 79

45 inventors:

goldMedal Kunihiko Minami (4 out of 8 patents)

silverMedal Junji Mizutani (3 out of 3 patents)

bronzeMedal Masaaki Imai (3 out of 4 patents)

4.  Iwao Sawada (3 out of 3 patents)

5.  Toru Kannari (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sasakura Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/sasakura-engineering-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]
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