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Wakayama-Shi, Japan

Sugai Chemical Industry Co., Ltd.

USPTO Granted Patents = 11

EPO Patents = 1

Forward Citations = 22

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34 inventors (with patents filed for the assignee):

Nobuyori Shibamoto (3 out of 3 patents)

Shunsaku Tanaka (3 out of 3 patents)

Hiroharu Shibayama (2 out of 2 patents)

4. Koichi Ueda (2 out of 3 patents)

5. Hachiro Indo (2 out of 2 patents)

6. Satoshi Tachibana (2 out of 2 patents)

7. Hiroshi Nishikawa (2 out of 2 patents)

8. Masaru Yamabe (2 out of 2 patents)

9. Hideo Goto (2 out of 2 patents)

10. Koji Nishihara (2 out of 2 patents)

11. Takeshi Hashimoto (2 out of 2 patents)

12. Hironori Fujii (2 out of 3 patents)

13. Kenji Minami (1 out of 21 patents)

14. Yoichi Yamamoto (1 out of 32 patents)

15. Mitsuru Kondo (1 out of 43 patents)

11 patents: Sort by Forward Citations

1. 7569211 - Ascorbic acid derivatives and skin-whitening cosmetics (2009-08-04),

2. 7282597 - Ascorbic acid derivatives and skin-whitening cosmetics (2007-10-16),

3. 4824822 - Thermosensitive recording material (1989-04-25),

4. 4746645 - Heat-sensitive recording material (1988-05-24),

5. 4670581 - Biphenyl compounds and process for producing the same (1987-06-02),

6. 4465878 - Process for producing 4',4-dihydroxydiphenyl (1984-08-14),

7. 4382896 - Process for producing 4,4'-diphenyldisulfonic acid and its monopotassium (1983-05-10),

8. 4324742 - Process for separation of naphthalenedisulfonic acids (1982-04-13),

9. 4088702 - Process for preparing o-phenylphenol (1978-05-09),

10. 4060559 - Process for preparing O-phenylphenol (1977-11-29),

11. 3937664 - Oil filled electrical device (1976-02-10),

Sugai Chemical Industry Co., Ltd. is a leading manufacturer of high-quality chemical products in Japan. With a history of over 70 years, they specialize in producing a wide range of chemical products for various industries, including pharmaceuticals, cosmetics, and electronics. Their commitment to research and development has enabled them to provide innovative solutions that meet the needs of their customers. Visit their website to learn more about their products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

11 Patents

#2 in Wakayama-Shi

#4,039 in Japan

#50,159 in the World

Wakayama-Shi, Japan

Sugai Chemical Industry Co., Ltd.

Forward Citations = 22

34 inventors:

Nobuyori Shibamoto (3 out of 3 patents)

Shunsaku Tanaka (3 out of 3 patents)

Hiroharu Shibayama (2 out of 2 patents)

4. Koichi Ueda (2 out of 3 patents)

5. Hachiro Indo (2 out of 2 patents)

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