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Kanagawa, Japan

Tianma Japan, Ltd.

USPTO Granted Patents = 112

Trademarks = 2

Forward Citations = 126

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79 inventors (with patents filed for the assignee):

Yojiro Matsueda (20 out of 52 patents)

Hiroshi Haga (16 out of 81 patents)

Ken Sumiyoshi (13 out of 115 patents)

4. Koji Shigemura (12 out of 69 patents)

5. Daisuke Sugimoto (9 out of 22 patents)

6. Kazushige Takechi (9 out of 48 patents)

7. Genshiro Kawachi (8 out of 18 patents)

8. Kunihiro Shiota (8 out of 26 patents)

9. Jiro Yanase (8 out of 26 patents)

10. Yoshihiro Nonaka (8 out of 46 patents)

11. Hiroyuki Sekine (8 out of 66 patents)

12. Tetsushi Sato (7 out of 22 patents)

13. Ayuko Imai (7 out of 9 patents)

14. Nobuya Seko (7 out of 12 patents)

15. Kazunori Masumura (6 out of 15 patents)

Core Competencies:

OLED Display

Image Sensor

Fluorescence Polarization

Thermoelectric Conversion

Liquid Crystal Display

Ion Sensing

Light Beam Control

Thin-Film Device

Tactile Presentation

Gas Sensing

Optical Detection

Electronic Device

112 patents: Sort by Forward Citations

1. 12754446 - Viewing angle controllable touch panel device and display device (2026-10-06),

2. 12701814 - Imaging element and mother glass substrate (2026-08-04),

3. 12691447 - Microdevice and manufacturing method for microdevice (2026-07-28),

4. 12660338 - Photodiode array and image sensor (2026-06-16),

5. 12650382 - Fluorescence polarization measurement device, and degree of polarization measurement method (2026-06-09),

6. 12550462 - Imaging device (2026-02-10),

7. 12530996 - Display device (2026-01-20),

8. 12467866 - Fluorescence polarization immunoassay method and fluorescence polarization immunoassay device (2025-11-11),

9. 12392780 - Support for fluorescence polarization immunoassay, fluorescence polarization immunoassay kit and fluorescence polarization immunoassay (2025-08-19),

10. 12313509 - Sample solution preparation method for measurement by immunity analysis method using fluorescence, measurement cell, measurement kit, and sample solution preparation device (2025-05-27),

11. 12270782 - Ion sensing device (2025-04-08),

12. 12235561 - Light ray direction control element and display device (2025-02-25),

13. 12235234 - Ion sensing device (2025-02-25),

14. 12111550 - Active matrix substrate, liquid crystal display device, self-luminous display device, and imaging device (2024-10-08),

15. 12082503 - Thermoelectric conversion element and manufacturing method for thermoelectric conversion element (2024-09-03),

Company Overview

Tianma Japan, Ltd., based in Kanagawa, specializes in advanced display technology, focusing on the development and manufacturing of innovative display solutions. The company is recognized for its expertise in OLED displays, liquid crystal displays, and image sensors, catering to various industries. Additionally, Tianma engages in research on fluorescence polarization, thermoelectric conversion, ion sensing, and light beam control, positioning itself at the forefront of display technology advancements in the region.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

112 Patents

#37 in Kanagawa

#1,050 in Japan

#7,058 in the World

Kanagawa, Japan

Tianma Japan, Ltd.

Forward Citations = 126

79 inventors:

Yojiro Matsueda (20 out of 52 patents)

Hiroshi Haga (16 out of 81 patents)

Ken Sumiyoshi (13 out of 115 patents)

4. Koji Shigemura (12 out of 69 patents)

5. Daisuke Sugimoto (9 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tianma Japan, Ltd.. Retrieved from https://idiyas.com/company/tianma-japan

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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