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Shin-etsu Chemical Co., Ltd.

USPTO Granted Patents = 5,967

CIPO Patents = 21

EPO Patents = 2,024

Trademarks = 45

Forward Citations = 33,011

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2,196 inventors (with patents filed for the assignee):

Jun Hatakeyama (541 out of 559 patents)

Takeshi Kinsho (257 out of 261 patents)

Koji Hasegawa (210 out of 213 patents)

4. Takeru Watanabe (184 out of 186 patents)

5. Toshio Shiobara (182 out of 192 patents)

6. Tsutomu Ogihara (179 out of 186 patents)

7. Masaki Ohashi (151 out of 154 patents)

8. Satoshi Watanabe (128 out of 130 patents)

9. Takehisa Minowa (119 out of 119 patents)

10. Toshinobu Ishihara (116 out of 119 patents)

11. Masatoshi Arai (108 out of 109 patents)

12. Yoshihiro Kubota (101 out of 104 patents)

13. Seiichiro Tachibana (98 out of 100 patents)

14. Hideto Kato (96 out of 97 patents)

15. Tadashi Amano (94 out of 94 patents)

Core Competencies:

Resist Material

Optical Isolator

Polysilicon Rod

Quantum Dot Production

Electromagnetic Wave Shielding

Silicone Release Agent

Bio-Electrode Composition

Thermal Conductive Composite

Rare Earth Magnet Assembly

Low Dielectric Silica Powder

Film-Forming Method

Imprint Technology

5,967 patents: Sort by Forward Citations

1. 12493244 - Photosensitive resin composition, photosensitive dry film, and pattern formation method (2025-12-09),

2. 12487524 - Resist material and patterning process (2025-12-02),

3. 12487478 - Optical isolator (2025-12-02),

4. 12484273 - Laminate substrate, freestanding substrate, method for manufacturing laminate substrate, and method for manufacturing freestanding substrate (2025-11-25),

5. 12479956 - Fluoropolyether-group-containing polymer, surface treatment agent, and article (2025-11-25),

6. 12479786 - 11-halo-1,1-dialkoxy-7-undecene compound and processes for preparing a 11,11-dialkoxy-4-undecenyltriarylphosphonium halide compound, a trienal compound, and a dienal compound (2025-11-25),

7. 12479733 - Polysilicon rod and method for manufacturing polysilicon rod (2025-11-25),

8. 12478941 - Method for producing a quantum dot (2025-11-25),

9. 12478565 - Water-dispersion emulsion composition, method for manufacturing the same, emulsion addition-cured composition, and cosmetic (2025-11-25),

10. 12477709 - Electromagnetic wave shielding sheet (2025-11-18),

11. 12474631 - Pellicle frame, pellicle, exposure original plate with pellicle, exposure method, and semiconductor or liquid-crystal-display manufacturing method (2025-11-18),

12. 12474628 - Reflective mask blank and method for manufacturing reflective mask (2025-11-18),

13. 12473473 - Silicone release agent composition and a release paper or film (2025-11-18),

14. 12473425 - Hydroxypropyl methyl cellulose phthalate, method for producing the same, and composition for hot-melt extrusion (2025-11-18),

15. 12468225 - Positive resist composition and pattern forming process (2025-11-11),

Shin-Etsu Chemical Co., Ltd. is a global chemical company headquartered in Tokyo, Japan. It specializes in the manufacturing and sale of various chemical products including polyvinyl chloride (PVC), semiconductor silicones, synthetic quartz glass, and photomask blanks. With over 100 years of history, Shin-Etsu Chemical has a strong presence in the global market and serves a wide range of industries such as electronics, automotive, construction, and medical. The company is committed to providing innovative solutions and contributing to the advancement of society through its advanced chemical technologies and research.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

5,967 Patents

#22 in Tokyo

#41 in Japan

#135 in the World

Shin-etsu Chemical Co., Ltd.

Forward Citations = 33,011

2,196 inventors:

Jun Hatakeyama (541 out of 559 patents)

Takeshi Kinsho (257 out of 261 patents)

Koji Hasegawa (210 out of 213 patents)

4. Takeru Watanabe (184 out of 186 patents)

5. Toshio Shiobara (182 out of 192 patents)

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