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Asahi Kasei Emd Corporation

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USPTO Granted Patents = 48

% Expired Patents = 27.1

EPO Patents = 25

Trademarks = 6

Forward Citations = 354

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82 inventors (with patents filed for the assignee):

Masaya Yamashita (9 out of 25 patents)

Toru Kitamura (6 out of 8 patents)

Katsumi Kakuta (4 out of 4 patents)

4. Toshinori Takatsuka (4 out of 10 patents)

5. Yo Yamagata (3 out of 4 patents)

6. Kazutoshi Ishibashi (3 out of 4 patents)

7. Yusuke Aiba (3 out of 3 patents)

8. Koichi Hikida (3 out of 6 patents)

9. Koji Shibahara (3 out of 3 patents)

10. Yoshihiko Shibata (2 out of 3 patents)

11. Toshio Kaiho (2 out of 4 patents)

12. Yuichi Kanayama (2 out of 3 patents)

13. Edson Gomes Camargo (2 out of 12 patents)

14. Norihito Tanaka (2 out of 3 patents)

15. Masatoshi Miyahara (2 out of 4 patents)

Core Competencies:

Magnetic Sensor

Compound Semiconductor

Infrared Sensor

Electroconductive Film

Motor Control Circuit

Position Detection

Current Measuring Device

Transconductance Amplifier

Optical Device

Azimuth Measurement

Driving Device

Photosensitive Resin

48 patents: Sort by Forward Citations

1. 9116195 - Magnetic sensor and sensitivity measuring method thereof (2015-08-25),

2. 8552533 - Compound semiconductor substrate and method for manufacturing the same (2013-10-08),

3. 8461026 - Compound semiconductor lamination, method for manufacturing the same, and semiconductor device (2013-06-11),

4. 8305017 - Motor control circuit, motor system, and motor control method (2012-11-06),

5. 8304734 - Infrared sensor (2012-11-06),

6. 8247701 - Electroconductive particle placement sheet and anisotropic electroconductive film (2012-08-21),

7. 8241436 - Conductive filler and solder material (2012-08-14),

8. 8169215 - Magnetic sensor and method of manufacturing thereof (2012-05-01),

9. 8150657 - Physical quantity measuring instrument and signal processing method thereof (2012-04-03),

10. 8143343 - Microphase-separated structure, immobilized microphase-separated structure and wavelength-variable laser oscillator, temperature sensor and light filter using the structure (2012-03-27),

11. 8085035 - Hall element and magnetic sensor (2011-12-27),

12. 8084083 - Method for manufacturing an anisotropic conductive adhesive sheet (2011-12-27),

13. 8054291 - Pointing device (2011-11-08),

14. 8027803 - Traveling direction measuring apparatus and traveling direction measuring method (2011-09-27),

15. 7948412 - Delta-sigma modulator (2011-05-24),

Company Overview

Asahi Kasei Emd Corporation, based in Tokyo, specializes in advanced technologies such as magnetic sensors, compound semiconductors, and motor control circuits. The company is committed to innovation in areas like infrared sensors and electroconductive films, contributing to diverse applications in physical quantity measurement and optical devices. With a focus on high-performance solutions, Asahi Kasei Emd plays a significant role in enhancing technology across various industries, ensuring reliability and efficiency in its offerings.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

48 Patents

#815 in Tokyo

#1,758 in Japan

#14,570 in the World

Asahi Kasei Emd Corporation

Forward Citations = 354

82 inventors:

Masaya Yamashita (9 out of 25 patents)

Toru Kitamura (6 out of 8 patents)

Katsumi Kakuta (4 out of 4 patents)

4. Toshinori Takatsuka (4 out of 10 patents)

5. Yo Yamagata (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asahi Kasei Emd Corporation. Retrieved from https://idiyas.com/company/asahi-kasei-emd

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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