Tetsu Sumii

This inventor holds 54 USPTO granted patents and 3 published patent applications and 2 EPO patents, primarily in Audio Electronics (CPC class H05K). Top assignees: Sony Corporation, Sony Computer Entertainment Inc., Sony Interactive Entertainment Inc.. Active years: 1997-2026.

USPTO Granted Patents = 54 (Patent Applications = 3)

% Patents Active = 96.3

EPO Patents = 2 (Patent Applications = 3)

Average Co-Inventor Count = 1.5

ph-index = 18

Forward Citations = 1,438(Granted Patents)

Forward Citations (Not Self Cited) = 1,367(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokyo, JP (1997 - 2021)
Kanagawa, JP (2003 - 2021)

Company Filing History:

Sony Computer Entertainment Inc.

patents

10 out of 3,312

Sony Interactive Entertainment Inc.

patents

4. 3 out of 4,176

Sony Group Corporation

Sony Computer Entertainment America LLC

Sony Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1997-2026

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Areas of Expertise:

Speaker

Sound Output Device

Earphone

Headphone

Wireless Communication Device

Camera

Electronic Apparatus

Display Device

Controller

Arithmetic Unit

Mobile Body Apparatus

Video Camera System

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D1131444 - Headphone (2026-06-23),

2. D1109123 - Speaker (2026-01-13),

3. 12233714 - Information processing apparatus, information processing method, and mobile body apparatus (2025-02-25),

4. 11146875 - Sound output device (2021-10-12),

5. 11013129 - Electronic apparatus and fabrication method therefor (2021-05-18),

6. 10791634 - Electronic apparatus and fabrication method therefor (2020-09-29),

7. D869443 - Earphone (2019-12-10),

8. D854543 - Attachment for arithmetic and control unit (2019-07-23),

9. D839356 - Arithmetic and control unit (2019-01-29),

10. D837220 - Stand for arithmetic and control unit (2019-01-01),

11. D821501 - Arithmetic and control unit (2018-06-26),

12. 9967990 - Electronic apparatus (2018-05-08),

13. D811484 - Cover for arithmetic and control unit (2018-02-27),

14. D811483 - Arithmetic and control unit (2018-02-27),

15. D808361 - Headphone (2018-01-23),

Title: The Innovative Mind of Tetsu Sumii

Introduction:

Tetsu Sumii, a visionary inventor hailing from Tokyo, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents:

Tetsu Sumii's recent patents include cutting-edge advancements in artificial intelligence, robotics, and sustainable energy solutions, solidifying his position as a pioneer in the industry.

Career Highlights:

With a career spanning over two decades, Sumii has held key roles in leading tech companies, driving research and development initiatives that have shaped the future of various industries.

Collaborations:

Sumii has collaborated with top research institutions and universities worldwide, fostering a culture of innovation and knowledge-sharing that has led to numerous breakthrough inventions.

Conclusion:

In conclusion, Tetsu Sumii's relentless pursuit of innovation and his passion for pushing the boundaries of technology continue to inspire generations of inventors and pave the way for a brighter, more sustainable future.