Takashi Sugiyama

This inventor holds 78 USPTO granted patents and 4 published patent applications, plus 1 CIPO patent and 34 EPO patents, primarily in Power Conversion Devices (CPC class F21S). Top assignees: Stanley Electric Co., Ltd, Asahi Glass Company, Limited, Nippon Closures Co., Ltd.. Active years: 1981-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Sugiyama. Retrieved from https://idiyas.com/inventor/takashi-sugiyama

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

USPTO Granted Patents = 78 (Patent Applications = 4)

% Patents Active = 67.9

CIPO Patents = 1

EPO Patents = 34 (Patent Applications = 23)

Average Co-Inventor Count = 2.0

ph-index = 13

Forward Citations = 566(Granted Patents)

Forward Citations (Not Self Cited) = 545(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kashiwa, JP (1989 - 1993)
Hino, JP (1992 - 1998)
Tenri, JP (2001)
Hadano, JP (2003)
Ikoma-gun, JP (2004)
Yokohama-shi, JP (2007)
Meguro-ku, JP (2011)
Nagareyama, JP (1996 - 2012)
Chiyoda-ku, JP (2010 - 2012)
Kawasaki, JP (1998 - 2015)
Yokohama, JP (1995 - 2020)
Tokyo, JP (1981 - 2023)
Kanagawa, JP (1998 - 2023)
Chuo-ku, JP (2017 - 2024)
Nagataro, JP (2024)

Company Filing History:

38 out of 1,445

Stanley Electric Co., Ltd

patents

11 out of 2,560

Asahi Glass Company, Limited

patents

7 out of 30

Nippon Closures Co., Ltd.

patents

4. 5 out of 900

Hitachi Medical Corporation

patents

5. 4 out of 471

National Institute of Information and Communications Technology, Incorporated

patents

6. 3 out of 53,262

Kabushiki Kaisha Toshiba

Fujitsu General Limited

patents

9. 2 out of 25,954

Sharp Kabushiki Kaisha Corporation

patents

10. 2 out of 518

Toshiba Mitsubishi-Electric Industrial Systems Corporation

Bio Coke Lab. Co., Ltd.

Lapis Semiconductor Co., Ltd.

patents

15. 1 out of 16,602

Mitsubishi Electric Corporation

Toshiba Mitsubishi-Electric Industrial Systems Corporal

patent

18. 3 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 1981-2026

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Areas of Expertise:

Power Conversion

Vehicle Lighting

Synthetic Resin

Hydrogen Generation

Light Source

Display Device

Heat Pump

Optical Device

Liquid Crystal

Imaging Element

Head-up Display

Reflector Array

78 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12732092 - Circulating current control for a modular multilevel converter (2026-09-08),

2. 12107514 - Power conversion device with control signal gate selection circuit (2024-10-01),

3. 11952177 - Synthetic resin container closure (2024-04-09),

4. 11949322 - Power conversion device (2024-04-02),

5. 11841491 - Observation vessel, sample preparation method, and observation method (2023-12-12),

6. 11753215 - Container closure of synthetic resin (2023-09-12),

7. 11628982 - Plastic cap and method for manufacturing same (2023-04-18),

8. 11325758 - Composite container lid (2022-05-10),

9. 11180293 - Synthetic resin container lid (2021-11-23),

10. 11180288 - Synthetic resin container lid (2021-11-23),

11. 11110853 - Vehicle headlight system (2021-09-07),

12. 10788185 - Vehicular lamp system configured to change the extent of high-low ratio of the illumination distributions (2020-09-29),

13. 10746368 - Vehicular headlight (2020-08-18),

14. 10738958 - Lighting device (2020-08-11),

15. 10557611 - Method for adjusting output light color of vehicular headlamp unit (2020-02-11),

Title: Inventor Takashi Sugiyama: Pioneering Innovations in Tokyo

Introduction: Takashi Sugiyama is a renowned inventor based in Tokyo, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Takashi Sugiyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to innovation.

Career Highlights: With over two decades of experience in the industry, Sugiyama has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we approach complex challenges.

Collaborations: Throughout his career, Takashi Sugiyama has collaborated with top companies, fellow inventors, and patent attorneys to bring his ideas to life and ensure their successful implementation in the market.

Conclusion: Takashi Sugiyama's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor, shaping the future of technology in Tokyo and beyond.

Profile summary based on public USPTO records.