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Hitachi Display Devices, Ltd.

USPTO Granted Patents = 31

Forward Citations = 244

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52 inventors (with patents filed for the assignee):

Nobuyuki Koganezawa (7 out of 25 patents)

Masayuki Mifune (4 out of 29 patents)

Masaki Tsubokura (4 out of 51 patents)

4. Yuji Azuma (4 out of 17 patents)

5. Akiyoshi Tobe (3 out of 15 patents)

6. Shimon Itakura (3 out of 25 patents)

7. Yoshiaki Takahashi (3 out of 43 patents)

8. Tatsuyuki Fumikura (3 out of 9 patents)

9. Yoshiteru Tomizuka (2 out of 7 patents)

10. Ken Kagabu (2 out of 12 patents)

11. Seiichi Nishiyama (2 out of 13 patents)

12. Saburo Watanabe (2 out of 8 patents)

13. Hiroshi Tokuyama (2 out of 3 patents)

14. Yasuharu Yatsu (2 out of 10 patents)

15. Hidehiro Hanada (2 out of 2 patents)

31 patents: Sort by Forward Citations

1. 8400584 - Liquid crystal display device having a light guide plate being formed in a trapezoidal shape in cross section (2013-03-19),

2. 7940354 - Liquid crystal display device (2011-05-10),

3. 7920223 - Display device (2011-04-05),

4. 7916116 - Liquid crystal display (2011-03-29),

5. 7903202 - Liquid crystal display device (2011-03-08),

6. 7903197 - Liquid crystal display device with backlight having efficient heat radiating properties (2011-03-08),

7. 7889287 - Display device with first and second elastic spacers extending in parallel on opposite surfaces of a display panel and having different hardness at corresponding locations (2011-02-15),

8. 7855765 - Liquid crystal display device (2010-12-21),

9. 7855761 - Liquid crystal display device (2010-12-21),

10. 7852005 - Fluorescent lamp with external electrode, backlight, and display device (2010-12-14),

11. 7837375 - Planar illumination device and liquid crystal display device using the planar illumination device as a backlight (2010-11-23),

12. 7817223 - Liquid crystal display device (2010-10-19),

13. 7808576 - Liquid crystal display device (2010-10-05),

14. 7800712 - Cold cathode fluorescent lamp and liquid crystal display device (2010-09-21),

15. 7746419 - Liquid crystal display device (2010-06-29),

Hitachi Display Devices, Ltd. is a leading manufacturer and supplier of display devices and related technologies. With a strong focus on innovation and quality, the company offers a wide range of display solutions for various industries including automotive, consumer electronics, medical, and industrial applications. Hitachi Display Devices is committed to providing cutting-edge display technologies that enhance user experiences and contribute to the advancement of digitalization.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

31 Patents

#23 in Chiba

#2,217 in Japan

#20,624 in the World

Hitachi Display Devices, Ltd.

Forward Citations = 244

52 inventors:

Nobuyuki Koganezawa (7 out of 25 patents)

Masayuki Mifune (4 out of 29 patents)

Masaki Tsubokura (4 out of 51 patents)

4. Yuji Azuma (4 out of 17 patents)

5. Akiyoshi Tobe (3 out of 15 patents)

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