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For the Inventor, By the Inventor

Tokyo, Japan

Dic Corporation


USPTO Granted Patents = 810

% Expired Patents = 14.2



Trademarks = 40

Forward Citations = 993

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909 inventors (with patents filed for the assignee):

goldMedal Yoshinori Iwashita (45 out of 46 patents)

silverMedal Shinji Ogawa (31 out of 38 patents)

bronzeMedal Joji Kawamura (26 out of 30 patents)

4.  Katsunori Shimada (26 out of 26 patents)

5.  Shotaro Kawakami (25 out of 36 patents)

6.  Takeshi Kuriyama (25 out of 33 patents)

7.  Yutaka Satou (24 out of 27 patents)

8.  Tomoyuki Imada (24 out of 28 patents)

9.  Go Sudo (23 out of 26 patents)

10.  Masanao Hayashi (20 out of 20 patents)

11.  Makoto Negishi (20 out of 29 patents)

12.  Kazuo Arita (20 out of 25 patents)

13.  Tetsuo Kusumoto (19 out of 29 patents)

14.  Hiroshi Kinoshita (19 out of 19 patents)

15.  Yasuhiro Kuwana (19 out of 20 patents)


Core Competencies:
Urethane Resin
Curable Resin
Pressure-Sensitive Adhesive
Pigment Composition
Inkjet Ink
Alumina Particles
Composite Particle
Liquid Crystal Composition
Synthetic Leather
Fiber-Reinforced Material
Epoxy Resin
Colorant

810 patents:

1. 12742094 - Silicone chain-containing polymer and coating composition containing said polymer (2026-09-22),
2. 12735609 - Pressure-sensitive adhesive composition for patterned pressure-sensitive adhesive tape, patterned pressure-sensitive adhesive tape, and production method thereof (2026-09-15),
3. 12735599 - Aqueous pigment dispersion and inkjet ink (2026-09-15),
4. 12735328 - Niobium oxide particles and method for producing niobium oxide particles (2026-09-15),
5. 12715992 - Polyarylene sulfide resin composition, molded article, and methods for producing these (2026-08-25),
6. 12715978 - Particle-containing resin composition and molded product (2026-08-25),
7. 12703767 - Fiber base material and artificial leather (2026-08-11),
8. 12702961 - Resistivity adjustment device and resistivity adjustment method (2026-08-11),
9. 12699898 - Method, information processing device, and recording medium storing instructions for prediction (2026-08-04),
10. 12697819 - Pigment dispersion for ink jet ink, ink jet ink, and printed matter (2026-08-04),
11. 12697760 - Mold, method for manufacturing plate-shaped molded article, method for manufacturing test piece, and method for predicting characteristics of resin composition molded article (2026-08-04),
12. 12686784 - C.I. pigment yellow 180, aqueous pigment dispersion for ink-jet ink, and aqueous pigment ink (2026-07-21),
13. 12686484 - Mobile object and mobile object flying method (2026-07-21),
14. 12679977 - Disazo pigment, pigment composition, and printing ink (2026-07-14),
15. 12674080 - Adhesive sheet, article and method for producing article (2026-07-07),
Dic Corporation, headquartered in Tokyo, Japan, specializes in the development and manufacturing of advanced resin compositions. The company focuses on a range of core technologies, including urethane resins, curable resins, and pressure-sensitive adhesives. Additionally, Dic is known for its expertise in pigment compositions, inkjet inks, and alumina particles, contributing to various applications across industries. With a commitment to innovation, Dic Corporation plays a significant role in enhancing material performance and functionality in diverse sectors.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Dic Corporation
810 Patents

#131 in Tokyo

#264 in Japan

#1,240 in the World

Tokyo, JP
Tokyo, Japan

Dic Corporation

Forward Citations = 993

909 inventors:

goldMedal Yoshinori Iwashita (45 out of 46 patents)

silverMedal Shinji Ogawa (31 out of 38 patents)

bronzeMedal Joji Kawamura (26 out of 30 patents)

4.  Katsunori Shimada (26 out of 26 patents)

5.  Shotaro Kawakami (25 out of 36 patents)

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