Tomofumi Yamanashi

This inventor holds 73 USPTO granted patents and 8 published patent applications, plus 1 CIPO patent and 32 EPO patents, primarily in Audio Processing (CPC class G06T). Top assignees: Panasonic Intellectual Property Management Co., Ltd., Panasonic Corporation, Panasonic Intellectual Property Corporation of America. Active years: 2008-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomofumi Yamanashi. Retrieved from https://idiyas.com/inventor/tomofumi-yamanashi

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

USPTO Granted Patents = 73 (Patent Applications = 8)

% Patents Active = 76.7

CIPO Patents = 1 (Patent Applications = 8)

EPO Patents = 32 (Patent Applications = 32)

Average Co-Inventor Count = 2.5

ph-index = 8

Forward Citations = 238(Granted Patents)

Forward Citations (Not Self Cited) = 198(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Osaka, JP (2010)
Tokyo, JP (2008 - 2012)
Kanagawa, JP (2011 - 2024)

Company Filing History:

31 out of 13,338

Panasonic Intellectual Property Management Co., Ltd.

patents

23 out of 16,454

Panasonic Corporation

patents

14 out of 4,016

Panasonic Intellectual Property Corporation of America

patents

4. 2 out of 254

Panasonic Automotive Systems Co., Ltd.

patents

5. 2 out of 140

Panasonic Automotive Systems Co., Ltd.

patents

6. 1 out of 27,375

Matsushita Electric Industrial Co., Ltd.

where one patent can have more than one assignee

Years Active: 2008-2026

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Areas of Expertise:

Audio Processing

Voice Processing

Active Noise Reduction

Makeup Assistance

Wrinkle Detection

Encoding Device

Decoding Device

Image Processing

Makeup Application

Gloss Determination

Makeup Support

73 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12738291 - Audio processing apparatus, audio processing method, and recording medium (2026-09-15),

2. 12666211 - Audio processing system, audio processing device, and audio processing method (2026-06-23),

3. 12412594 - Audio processing system, audio processing device, and audio processing method (2025-09-09),

4. 12125468 - Audio processing system, audio processing device, and audio processing method (2024-10-22),

5. 12118990 - Voice processing device, voice processing method and voice processing system (2024-10-15),

6. 12039965 - Audio processing system and audio processing device (2024-07-16),

7. 11804220 - Voice processing device, voice processing method and voice processing system (2023-10-31),

8. 10909966 - Active noise reduction device and active noise reduction method (2021-02-02),

9. 10789934 - Active noise reduction device and active noise reduction method (2020-09-29),

10. 10660425 - Makeup assistance device, makeup assistance method, and makeup assistance program (2020-05-26),

11. 10549688 - Fake engine sound control device and fake engine sound control method (2020-02-04),

12. 10413042 - Makeup support device, makeup support method, and makeup support program (2019-09-17),

13. 10342316 - Makeup support device, makeup support method, and makeup support program (2019-07-09),

14. 10299568 - Makeup application assistance device, makeup application assistance method, and makeup application assistance program (2019-05-28),

15. 10292481 - Makeup application assistance device, makeup application assistance method, and makeup application assistance program (2019-05-21),

Title: **Tomofumi Yamanashi: Pioneer in Audio Processing Innovations**

Introduction

Tomofumi Yamanashi, based in Kanagawa, Japan, is a distinguished inventor with an impressive portfolio of 70 patents. His contributions mainly focus on advanced audio processing technologies, reflecting his commitment to enhancing sound quality and clarity across various applications.

Latest Patents

Among his latest patents, Yamanashi has developed an innovative audio processing system that includes multiple first microphones, adaptive filters, and processing units. This system is designed to acquire audio signals from different positions, intelligently processing them to determine the dominance of specific audio components. Another notable patent involves a voice processing device that employs multiple microphones to effectively filter and identify voices, ensuring that the speaker's voice is captured clearly while suppressing other sounds. Both patents showcase Yamanashi's technical expertise in audio signal processing and his dedication to refining user experience in auditory technologies.

Career Highlights

Throughout his career, Yamanashi has held significant positions at reputable companies, including Panasonic Intellectual Property Management Co., Ltd. and Panasonic Corporation. His tenure at these organizations has allowed him to work on groundbreaking technologies that have set new standards in audio processing and sound management.

Collaborations

Yamanashi has collaborated with esteemed colleagues, such as Toshiyuki Morii and Masahiro Oshikiri. Together, they have contributed to the enhancement of audio technology, achieving remarkable advancements in the field through their combined expertise and innovative approaches.

Conclusion

Tomofumi Yamanashi is a leading figure in audio processing innovation. His numerous patents and collaborations underscore his vital role in this sector, positioning him as an influential inventor dedicated to improving sound technology. With each advancement, Yamanashi continues to inspire future innovations in audio processing, paving the way for further developments in the industry.

Profile summary based on public USPTO records.