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Toppan Inc.

USPTO Granted Patents = 171

EPO Patents = 72

Trademarks = 1

Forward Citations = 14

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300 inventors (with patents filed for the assignee):

Yoshiko Ishimaru (8 out of 11 patents)

Ayumi Tanaka (7 out of 8 patents)

Miki Fukugami (5 out of 12 patents)

4. Kiyoaki Nishitsuji (5 out of 15 patents)

5. Takeshi Nishikawa (5 out of 24 patents)

6. Koichi Sagawa (5 out of 5 patents)

7. Shinichi Shimamura (5 out of 5 patents)

8. Akihito Kagotani (4 out of 21 patents)

9. Akiharu Miyanaga (4 out of 16 patents)

10. Soichiro Nikata (4 out of 11 patents)

11. Tomohiro Nakagome (4 out of 16 patents)

12. Hanae Tagami (4 out of 5 patents)

13. Yu Ookubo (4 out of 6 patents)

14. Toshiji Yasuhara (4 out of 5 patents)

15. Susumu Maniwa (4 out of 4 patents)

Core Competencies:

Gas Barrier Laminate

Packaging Material

Flexible Wiring Board

Quantum Dot

Solid-State Image Sensor

Light Control Sheet

Electrode Catalyst Layer

Photoelectric Conversion

Display Device

Thermal Transfer Medium

Wavelength Selective Filter

Decorative Sheet

171 patents: Sort by Forward Citations

1. 12753285 - Gas barrier laminate, packaging material, packaging body, and packaged article (2026-10-06),

2. 12752990 - Layered gas-barrier product and packaging bag (2026-10-06),

3. 12744224 - Electrode catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell (2026-09-22),

4. 12740223 - Electroluminescent element, light-emitting device, and method for producing electroluminescent element (2026-09-15),

5. 12736636 - Range imaging device and range imaging method (2026-09-15),

6. 12735555 - Biodegradable resin composition and molded body (2026-09-15),

7. 12729323 - Adhesive sheet, display device using the same, composition for forming adhesive layer used for production of adhesive film (2026-09-08),

8. 12713723 - SOLID-STATE IMAGE SENSOR AND METHOD FOR PRODUCING THE SAME (2026-08-18),

9. 12713660 - THIN FILM TRANSISTOR AND METHOD OF MANUFACTRUTING THIN FILM TRANSISTOR (2026-08-18),

10. 12710566 - OPTICAL FILM, DISPLAY DEVICE, AND COMPOSITION FOR FORMING COLORED LAYER (2026-08-18),

11. 12703799 - Composition for forming colored layer, optical film, and display device (2026-08-11),

12. 12693460 - Optical film, display device, and composition for forming colored layer (2026-07-28),

13. 12692058 - Laminate and standing pouch (2026-07-28),

14. 12685183 - Method for manufacturing wiring board (2026-07-14),

15. 12678262 - Examination marker and examination marker set (2026-07-14),

Toppan Inc., headquartered in Tokyo, Japan, is a leader in gas barrier technology, specializing in advanced materials that enhance packaging and electronic applications. The company develops innovative solutions such as gas barrier laminates and flexible wiring boards, contributing significantly to the fields of packaging materials and electronics. Toppan's expertise extends to quantum dots, solid-state image sensors, light control sheets, and electrode catalyst layers, positioning it at the forefront of technology that supports various industries, including consumer electronics and packaging.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

171 Patents

#397 in Tokyo

#788 in Japan

#4,841 in the World

Toppan Inc.

Forward Citations = 14

300 inventors:

Yoshiko Ishimaru (8 out of 11 patents)

Ayumi Tanaka (7 out of 8 patents)

Miki Fukugami (5 out of 12 patents)

4. Kiyoaki Nishitsuji (5 out of 15 patents)

5. Takeshi Nishikawa (5 out of 24 patents)

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