Takashi Matsui

This inventor holds 112 USPTO granted patents and 11 published patent applications and 43 EPO patents, primarily in Toner Technology (CPC class G03G9-08711). Top assignees: Canon Kabushiki Kaisha, Sharp Kabushiki Kaisha Corporation, Sumitomo Electric Industries, Limited. Active years: 1981-2026.

USPTO Granted Patents = 112 (Patent Applications = 11)

% Patents Active = 86.6

EPO Patents = 43 (Patent Applications = 36)

Average Co-Inventor Count = 2.9

ph-index = 29

Forward Citations = 1,820(Granted Patents)

Forward Citations (Not Self Cited) = 874(Dec 10, 2025)

Inventors with similar research interests:

🔬 See more inventors

Location History:

Tondabayashi, JP (1993)
Nara, JP (2005)
Susono, JP (2010)
Abiko, JP (2011)
Suntou-gun, JP (2010 - 2015)
Kawasaki, JP (2017 - 2018)
Toyoake, JP (2012 - 2019)
Kanagawa, JP (2012 - 2019)
Fukuyama, JP (2019 - 2020)
Akishima, JP (2020)
Osaka, JP (2012 - 2022)
Mishima, JP (2015 - 2022)
Sakai, JP (2018 - 2022)
Shizuoka, JP (2022)
Yokohama, JP (1981 - 2023)
Tokyo, JP (2010 - 2024)

Company Filing History:

56 out of 92,842

Canon Kabushiki Kaisha

patents

14 out of 25,939

Sharp Kabushiki Kaisha Corporation

patents

13 out of 10,627

Sumitomo Electric Industries, Limited

patents

4. 8 out of 1,037

Shiseido Company, Limited

patents

5. 7 out of 1,953

Jfe Steel Corporation

Pola Chemical Industries, Inc.

Japan Metals & Chemicals Co., Ltd.

Medical Therapies Limited

patents

13. 1 out of 80

Sei Optifrontier Co., Ltd.

patents

14. 1 out of 349

Sumitomo Electric Device Innovations, Inc.

patents

where one patent can have more than one assignee

Years Active: 1981-2026

Loading Chart...

Areas of Expertise:

Toner

Magnetic Toner

Cosmetic

Oil-in-Water Emulsion

Communication Apparatus

Optical Transceiver

Positive-Charging Toner

Two-Component Developer

Coke Production

Display Device

112 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12688029 - Communication apparatus for wirelessly communicating with another apparatus, information processing method, and program (2026-07-21),

2. 12578664 - Toner and method for producing toner (2026-03-17),

3. 12535750 - Toner (2026-01-27),

4. 12449742 - Toner and method for manufacturing toner (2025-10-21),

5. 12429789 - Toner and method for producing toner (2025-09-30),

6. 12386278 - Toner and method for producing toner (2025-08-12),

7. 12318467 - Cosmetic (2025-06-03),

8. 12134736 - Method of producing coal blend and method of producing coke (2024-11-05),

9. 12120770 - Communication apparatus capable of communicating with other devices, control method of communication apparatus, and storage medium (2024-10-15),

10. 12037546 - Method of estimating surface tension of coal and method of producing coke (2024-07-16),

11. 11912940 - Method of producing coal mixture and method of producing coke (2024-02-27),

12. 11806412 - Oil-in-water emulsion sunscreen cosmetic (2023-11-07),

13. 11801207 - Water-in-oil emulsion sunscreen cosmetic (2023-10-31),

14. 11687332 - Communication apparatus for wirelessly communicating with another apparatus, information processing method, and program (2023-06-27),

15. 11529293 - Oil-in-water emulsion cosmetic (2022-12-20),

Title: Innovator Spotlight: Takashi Matsui Unveiling the Pioneering Patents

Introduction: Takashi Matsui, a prolific inventor hailing from Mishima, Japan, has made significant contributions to the fields of coal mixture production and cosmetics with his impressive portfolio of 102 patents.

Latest Patents: Matsui's recent patents showcase his ingenuity, such as the method of producing a coal mixture meeting specific criteria for blending different coals and the groundbreaking oil-in-water emulsion sunscreen cosmetic that excels in UV protection and water resistance.

Career Highlights: Throughout his career, Matsui has lent his expertise to renowned companies like Canon and Sharp, honing his skills and pushing the boundaries of innovation in diverse industries.

Collaborations: Matsui has collaborated with industry peers such as Michihisa Magome and Shuichi Hiroko, fostering a culture of innovation and knowledge-sharing to drive forward groundbreaking inventions.

Conclusion: Takashi Matsui's pioneering work in coal production and cosmetics exemplifies a relentless pursuit of innovation and excellence, solidifying his status as a visionary inventor in the realm of patents and inventions.