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Katayama Chemical, Inc.

USPTO Granted Patents = 20

EPO Patents = 3

Forward Citations = 154

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40 inventors (with patents filed for the assignee):

Yoshiharu Wakao (4 out of 4 patents)

Sakae Katayama (4 out of 20 patents)

Yosuke Ito (4 out of 7 patents)

4. Hidenori Hirashima (4 out of 4 patents)

5. Sakae Katayama, Deceased (4 out of 4 patents)

6. Katsuji Tsuji (3 out of 3 patents)

7. Yasuo Fukuyo (2 out of 2 patents)

8. Takuro Tabuchi (2 out of 2 patents)

9. Takashi Mizumori (2 out of 2 patents)

10. Kunio Nishimura (2 out of 4 patents)

11. Yoichi Sano (2 out of 2 patents)

12. Yoshinori Nishiki (1 out of 85 patents)

13. Takahito Ikeshita (1 out of 1 patent)

14. Yuji Fuchino (1 out of 1 patent)

15. Hideaki Shimomoto (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 9546452 - Process for manufacturing paperboard (2017-01-17),

2. 8123958 - Method for treating ship ballast water (2012-02-28),

3. 7618545 - Method for treating ship ballast water (2009-11-17),

4. 6461649 - Improving quality of flour-baked compositions (2002-10-08),

5. 6106770 - Method for preventing obstruction in aluminum brass pipes in a water (2000-08-22),

6. 6045684 - Process and apparatus for the production of an aqueous solution of (2000-04-04),

7. 5912389 - Stabilizer and stabilizing method for aqueous aliphatic aldehyde solution (1999-06-15),

8. 5760091 - Preventive agents against adhesion of marine organisms and methods of (1998-06-02),

9. 5591759 - Aqueous isothiazolone formulation (1997-01-07),

10. 5416248 - Method of removing volatile chlorinated hydrocarbon base materials (1995-05-16),

11. 5411990 - Industrial microbicide and a method for killing microbes for industrial (1995-05-02),

12. 5397804 - Industrial microbicide and a method for killing microbes for industrial (1995-03-14),

13. 5366661 - Method for forming a stabilized aqueous dispersion of inorganic (1994-11-22),

14. 5306725 - Stabilized isothiazolone liquid formulation (1994-04-26),

15. 5259985 - Calcium carbonate scale inhibitor having organophosphonate, water (1993-11-09),

Katayama Chemical, Inc. is a global leader in developing and manufacturing specialty chemicals for various industries, including automotive, electronics, and construction. With a commitment to innovation and sustainability, Katayama Chemical offers high-quality solutions to meet the evolving needs of their customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

20 Patents

#278 in Osaka

#2,886 in Japan

#30,364 in the World

Katayama Chemical, Inc.

Forward Citations = 154

40 inventors:

Yoshiharu Wakao (4 out of 4 patents)

Sakae Katayama (4 out of 20 patents)

Yosuke Ito (4 out of 7 patents)

4. Hidenori Hirashima (4 out of 4 patents)

5. Sakae Katayama, Deceased (4 out of 4 patents)

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