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Nippon Chemical Industrial Co., Ltd.

USPTO Granted Patents = 163

CIPO Patents = 6

EPO Patents = 17

Trademarks = 2

Forward Citations = 649

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207 inventors (with patents filed for the assignee):

Masashi Sugiya (18 out of 18 patents)

Tsuneo Imamoto (14 out of 15 patents)

Ken Tamura (13 out of 17 patents)

4. Yutaka Kinose (12 out of 13 patents)

5. Shinsuke Miyabe (10 out of 10 patents)

6. Junya Fukazawa (10 out of 10 patents)

7. Toru Hata (10 out of 11 patents)

8. Kazuhiro Nakatsui (9 out of 9 patents)

9. Yuichiro Haramoto (9 out of 13 patents)

10. Natsuhiro Sano (7 out of 7 patents)

11. Takeshi Sakamoto (7 out of 72 patents)

12. Shinji Tanabe (7 out of 17 patents)

13. Nobuhiko Oohara (7 out of 7 patents)

14. Masahiro Kikuchi (7 out of 24 patents)

15. Tsutomu Watanabe (7 out of 45 patents)

Core Competencies:

Negative Thermal Expansion Material

Lithium Secondary Battery

Optically Active Phosphine

Piezoelectric Material

Quantum Dot Precursor

Electrochemical Luminescent Cell

Thermoelectric Conversion Material

Silyl Phosphine Compound

Anticancer Agent

Silicotitanate Adsorbent

Chiral Amino Alcohol

Biarylphosphine Production

163 patents: Sort by Forward Citations

1. 12297123 - Negative thermal expansion material, method for producing the same, and composite material (2025-05-13),

2. 12275646 - Negative thermal expansion material, method for producing the same, and composite material (2025-04-14),

3. 12060321 - Method for producing indium carboxylate (2024-08-13),

4. 12022834 - Phosphine for fumigation, method for producing same, and fumigation method (2024-07-02),

5. 11773120 - Method for producing optically active 2, 3-bisphosphinopyrazine derivative and method for producing optically active phosphine transition metal complex (2023-10-03),

6. 11692134 - Method for producing InP quantum dot precursor and method for producing InP-based quantum dot (2023-07-04),

7. 11659768 - Piezoelectric material filler, composite piezoelectric material, composite piezoelectric device, composite piezoelectric material filler, and method for producing alkali niobate compound (2023-05-23),

8. 11646408 - Positive electrode active substance for lithium secondary battery, method for producing the same and lithium secondary battery (2023-05-09),

9. 11578266 - Silyl phosphine compound, process for producing silyl phosphine compound and process for producing InP quantum dots (2023-02-14),

10. 11554968 - Positive electrode active substance for lithium secondary battery and lithium secondary battery (2023-01-17),

11. 11512103 - Process for producing silyl phosphine compound and silyl phosphine compound (2022-11-29),

12. 11498935 - Optically active bisphosphinomethane, method for producing the same, and transition metal complex and asymmetric catalyst (2022-11-15),

13. 11453687 - Production method of biarylphosphine (2022-09-27),

14. 11407863 - Coated particles and production method therefor (2022-08-09),

15. 11404720 - Method for producing lithium titanium phosphate (2022-08-02),

NIPPON CHEMICAL INDUSTRIAL CO., LTD. is a leading chemical manufacturing company based in Japan. They specialize in the production and distribution of a wide range of chemicals for various industries, including electronics, automotive, pharmaceutical, and more. With a commitment to innovation and quality, NIPPON CHEMICAL INDUSTRIAL CO., LTD. strives to meet the needs of their customers and contribute to a sustainable future.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

163 Patents

#357 in Tokyo

#793 in Japan

#4,921 in the World

Nippon Chemical Industrial Co., Ltd.

Forward Citations = 649

207 inventors:

Masashi Sugiya (18 out of 18 patents)

Tsuneo Imamoto (14 out of 15 patents)

Ken Tamura (13 out of 17 patents)

4. Yutaka Kinose (12 out of 13 patents)

5. Shinsuke Miyabe (10 out of 10 patents)

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