Toru Yamaguchi

This inventor holds 44 USPTO granted patents and 9 published patent applications, plus 1 CIPO patent and 9 EPO patents, primarily in Image Forming Technology. Top assignees: Asahi Kasei Kabushiki Kaisha, Konica Minolta, Inc., Asahi Kasei Chemicals Corporation. Active years: 1988-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toru Yamaguchi. Retrieved from https://idiyas.com/inventor/toru-yamaguchi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 44 (Patent Applications = 9)

% Patents Active = 79.5

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 9 (Patent Applications = 17)

Average Co-Inventor Count = 2.4

ph-index = 5

Forward Citations = 274(Granted Patents)

Location History:

Kitakyushu, JP (1992)
Yokohama, JP (1995)
Saitama, JP (2006 - 2008)
Toshima-ku, JP (2015)
Chiyoda-ku, JP (2018)
Koganei, JP (2014 - 2023)
Tokyo, JP (1988 - 2024)

Company Filing History:

9 out of 1,001

Asahi Kasei Kabushiki Kaisha

Asahi Kasei Chemicals Corporation

Konica Minolta Business Technologies, Inc.

patents

6. 3 out of 801

Nippon Kayaku Kabushiki Kaisha

patents

7. 2 out of 53,286

Kabushiki Kaisha Toshiba

patents

8. 2 out of 173

Mitsubishi Heavy Industries Thermal Systems, Ltd.

patents

9. 2 out of 3,724

Nippon Steel Corporation

patents

10. 2 out of 57

University Public Corporation Osaka

patents

11. 1 out of 389

Ando Electric Company

Ns Solutions Corporation

patents

14. 1 out of 314

Taisho Pharmaceutical Co., Ltd.

patents

15. 1 out of 159

Toyama Chemical Co., Ltd.

17. 2 out of 834,601

Other

patents

where one patent can have more than one assignee

Years Active: 1988-2025

Loading Chart...

Areas of Expertise:

Image Forming Apparatus

Color Correction

Liquid Flowmeter

Resin Composition

Automotive Lamp

Dyeing Method

Polyphenylene Ether

Optical Fiber

44 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12404403 - Polyphenylene ether-based resin composition and molded article (2025-09-02),

2. 11867432 - Geothermal heat utilization system and operation method for geothermal heat utilization system (2024-01-09),

3. 11859871 - Geothermal heat utilization system and operation method for geothermal heat utilization system (2024-01-02),

4. 11825061 - Image forming apparatus, method of controlling, and computer program product correcting an image forming condition based on color of formed image and medium under image, and color space reference data (2023-11-21),

5. 11762726 - Information processing apparatus, information processing method, and program (2023-09-19),

6. 10723840 - Polyphenylene ether and resin composition (2020-07-28),

7. 10571842 - Image forming system, image forming apparatus, tone correction method, non-transitory recording medium storing computer readable tone correction program, and image density correction method (2020-02-25),

8. 10444413 - Black molded body and light reflective molded body and method for producing black molded body (2019-10-15),

9. 10253179 - Polyphenylene ether resin composition and molded article and method for producing polyphenylene ether resin composition (2019-04-09),

10. 10246574 - Light reflective parts and reflective parts for automobile lamp (2019-04-02),

11. 10209658 - Image forming system, image forming apparatus, tone correction method, non-transitory recording medium storing computer readable tone correction program, and image density correction method (2019-02-19),

12. 10174196 - Resin composition and molded article (2019-01-08),

13. 10151619 - Method and apparatus for testing liquid flowmeter (2018-12-11),

14. 10108113 - Image forming apparatus with switching unit to switch length of at least one of a roller pair (2018-10-23),

15. 9982131 - Automobile interior component formed of reinforced polyphenylene ether-based resin composition (2018-05-29),

Title: The Innovative Mind of Toru Yamaguchi

Introduction: Toru Yamaguchi, a visionary inventor hailing from Tokyo, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Toru Yamaguchi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of what is possible.

Career Highlights: With a career spanning over two decades, Yamaguchi has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Toru Yamaguchi has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Toru Yamaguchi's relentless pursuit of innovation and his passion for creating a better future through technology make him a true pioneer in the world of inventions.

Profile summary based on public USPTO records.