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Nittetu Chemical Engineering Ltd.

USPTO Granted Patents = 14

Forward Citations = 166

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28 inventors (with patents filed for the assignee):

Yoichi Shimoi (4 out of 4 patents)

Hidemasa Tsuruta (4 out of 4 patents)

Mikio Akune (4 out of 4 patents)

4. Yoshiaki Kinoshita (3 out of 3 patents)

5. Yoshiyuki Imagire (2 out of 3 patents)

6. Teruhiko Hirabayashi (2 out of 4 patents)

7. Toshiaki Kurihara (2 out of 2 patents)

8. Koji Kashima (1 out of 48 patents)

9. Isao Tanaka (1 out of 3 patents)

10. Hideo Tamura (1 out of 60 patents)

11. Yasuhiro Tateishi (1 out of 3 patents)

12. Takio Adachi (1 out of 2 patents)

13. Takao Suganuma (1 out of 3 patents)

14. Junichi Goda (1 out of 1 patent)

15. Masaomi Okazaki (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 6423235 - Column gas-liquid contacting apparatus and its use thereof (2002-07-23),

2. 6203704 - Method for separating objective component (2001-03-20),

3. 6039879 - Method for separating and recovering objective component (2000-03-21),

4. 5328670 - Method of treating nickel-containing etching waste fluid (1994-07-12),

5. 4425285 - Packing material unit (1984-01-10),

6. 4316878 - Method for the combustive treatment of waste fluids containing nitrogen (1982-02-23),

7. 4285820 - Process for the treatment of a waste liquid containing boron compounds (1981-08-25),

8. 4169131 - Process for recovering caustic alkali from spent alkali liquor (1979-09-25),

9. 4119538 - Treatment of waste liquid and apparatus therefor and a fertilizer (1978-10-10),

10. 4118467 - Treatment of gas containing hydrogen sulfide (1978-10-03),

11. 4093505 - Method and apparatus for heating and removing moisture from watery (1978-06-06),

12. 4062777 - Solid-fluid contacting apparatus (1977-12-13),

13. 4045341 - Method for the disposal of waste water containing ammonium ions, sulfate (1977-08-30),

14. 3941875 - Process for treating gas containing hydrogen sulfide (1976-03-02),

Nittetu Chemical Engineering Ltd. is a leading provider of chemical engineering solutions for industries worldwide. With a team of experienced engineers and innovative technologies, we deliver high-quality products and services that meet the unique needs of our clients. Our commitment to sustainability and continuous improvement sets us apart in the industry.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#1,396 in Tokyo

#3,485 in Japan

#40,882 in the World

Nittetu Chemical Engineering Ltd.

Forward Citations = 166

28 inventors:

Yoichi Shimoi (4 out of 4 patents)

Hidemasa Tsuruta (4 out of 4 patents)

Mikio Akune (4 out of 4 patents)

4. Yoshiaki Kinoshita (3 out of 3 patents)

5. Yoshiyuki Imagire (2 out of 3 patents)

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