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Polatechno Co., Ltd.

USPTO Granted Patents = 40

% Expired Patents = 77.5

EPO Patents = 15

Forward Citations = 124

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22 inventors (with patents filed for the assignee):

Takahiro Higeta (13 out of 13 patents)

Yuichi Sadamitsu (13 out of 20 patents)

Kouichi Tanaka (11 out of 39 patents)

4. Takuto Nishiguchi (11 out of 11 patents)

5. Hiroaki Ohno (9 out of 30 patents)

6. Noriaki Mochizuki (7 out of 9 patents)

7. Juichi Fukatani (4 out of 40 patents)

8. Izumi Omoto (4 out of 7 patents)

9. Seiko Ichikawa (4 out of 4 patents)

10. Mayu Kameda (4 out of 4 patents)

11. Hideyoshi Fujisawa (4 out of 6 patents)

12. Kenichiro Yoshioka (3 out of 4 patents)

13. Kazuyuki Kawabe (2 out of 2 patents)

14. Syoushi Takahashi (2 out of 2 patents)

15. Mitsunori Nakamura (1 out of 24 patents)

Core Competencies:

Polarizing Plate

Dye-Based Polarizer

Azo Compound

Optical Film

Liquid Crystal

Photosensitive Resin

Retardation Film

High-Transmissivity

Display Device

Infrared Wavelength

Polarization Element

Laminated Glass

40 patents: Sort by Forward Citations

1. 11802208 - Stilbene-based compound or salt thereof, and polarizing film, polarizing plate, and display device (2023-10-31),

2. 11391873 - Dye-based polarizing plate for infrared wavelength range using azo, anthraquinone, or cyanine compound (2022-07-19),

3. 10585281 - Polarizing member and head-up display device comprising same (2020-03-10),

4. 10488558 - Photosensitive resin composition and antireflection film (2019-11-26),

5. 10215902 - Achromatic dye-based polarization element, and polarization plate (2019-02-26),

6. 10209418 - Achromatic polarization element, and polarization plate (2019-02-19),

7. 10209417 - Achromatic dye-based highly-transmissive polarization element, and polarization plate (2019-02-19),

8. 10150871 - Azo compound, dye-based polarizing film containing same, and polarizing plate (2018-12-11),

9. 10126468 - Achromatic polarizing plate with high-transmissivity and high-degree of polarization (2018-11-13),

10. 10007142 - Dye-based polarizer as well as polarizing plate and liquid crystal display device using the polarizer (2018-06-26),

11. 9354371 - Azo compounds, and dye-based polarizing films and polarizing plates comprising the same (2016-05-31),

12. 9341747 - Azo compound and salt thereof, and dye-based polarizing film and polarizing plate containing the same (2016-05-17),

13. 9341746 - Azo compound, dye-based polarizing film and polarizing plate (2016-05-17),

14. 9244198 - Azo compound, dye-based polarizing film and polarizing plate (2016-01-26),

15. 9244194 - Azo compound and salt thereof, and dye-based polarizing film and polarizing plate containing the same (2016-01-26),

Company Overview

Polatechno Co., Ltd., based in Niigata, Japan, specializes in the development and manufacturing of advanced optical materials. The company focuses on stilbene compounds, azo compounds, and photosensitive resin compositions, which are integral to the production of dye-based polarizing plates and various optical films. Their innovations are crucial for enhancing the performance of liquid crystal displays and retardation films, positioning Polatechno as a key player in the optical technology sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

40 Patents

#8 in Niigata

#1,980 in Japan

#17,087 in the World

Polatechno Co., Ltd.

Forward Citations = 124

22 inventors:

Takahiro Higeta (13 out of 13 patents)

Yuichi Sadamitsu (13 out of 20 patents)

Kouichi Tanaka (11 out of 39 patents)

4. Takuto Nishiguchi (11 out of 11 patents)

5. Hiroaki Ohno (9 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Polatechno Co., Ltd.. Retrieved from https://idiyas.com/company/polatechno-company

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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