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Katayama Chemical Works Co., Ltd.

USPTO Granted Patents = 15

Forward Citations = 183

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25 inventors (with patents filed for the assignee):

Sakae Katayama (12 out of 20 patents)

Osamu Umekawa (6 out of 6 patents)

Sadaoki Kanada (3 out of 4 patents)

4. Yoshinari Kawasaki (3 out of 3 patents)

5. Atsushi Tsuda (2 out of 4 patents)

6. Kenzi Hanno (2 out of 4 patents)

7. Kenji Hanno (1 out of 2 patents)

8. Yosuke Ito (1 out of 7 patents)

9. Masato Magami (1 out of 6 patents)

10. Akira Yamamoto (1 out of 1 patent)

11. Michio Konno (1 out of 1 patent)

12. Yasutaka Arimoto (1 out of 1 patent)

13. Toshio Sato (1 out of 3 patents)

14. Kazuo Marugame (1 out of 2 patents)

15. Toru Yasunaga (1 out of 2 patents)

15 patents: Sort by Forward Citations

1. 5274079 - Protein partial degradation products that are useful as surface active (1993-12-28),

2. 5138038 - Protein partial degradation product, process for preparing it and its use (1992-08-11),

3. 4897201 - Composition and a process for promoting dewatering of granulated slag (1990-01-30),

4. 4885136 - Method of anticorrosive treatment for soft water boilers (1989-12-05),

5. 4647577 - Microbicidal/microbistatic compositions for industrial use employing (1987-03-03),

6. 4518610 - Microbicidal/microbistatic compositions and use thereof employing (1985-05-21),

7. 4512552 - Corrosion inhibitor (1985-04-23),

8. 4466975 - Microbicidal/microbistatic compositions for industrial use (1984-08-21),

9. 4432884 - Scale inhibiting agent (1984-02-21),

10. 4409353 - Easily dispersible composition for water soluble polymer (1983-10-11),

11. 4334957 - Microbicidal compositions for industrial use (1982-06-15),

12. 4289581 - Microbicidal slimicide compositions for industrial use (1981-09-15),

13. 4154818 - Gel product for destroying harmful marine organisms and method of (1979-05-15),

14. 4123443 - Process for the preparation of bromoacetic acid and esters thereof (1978-10-31),

15. 4071445 - Method and apparatus for treating waste water on ships (1978-01-31),

Katayama Chemical Works Co., Ltd. is a leading Japanese manufacturer of specialty chemicals and advanced materials. With over 90 years of experience, the company offers a wide range of high-quality products for various industries including electronics, automotive, and healthcare. Their commitment to innovation and customer satisfaction has made them a trusted partner for businesses worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

15 Patents

#318 in Osaka

#3,361 in Japan

#38,649 in the World

Katayama Chemical Works Co., Ltd.

Forward Citations = 183

25 inventors:

Sakae Katayama (12 out of 20 patents)

Osamu Umekawa (6 out of 6 patents)

Sadaoki Kanada (3 out of 4 patents)

4. Yoshinari Kawasaki (3 out of 3 patents)

5. Atsushi Tsuda (2 out of 4 patents)

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