Company Filing History:

10 out of 42,485

Hitachi, Ltd.

patents

5 out of 217

Hitachi Device Engineering Co., Ltd.

patents

2 out of 1,207

Hitachi Displays, Ltd.

patents

4. 1 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1991-2010

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. RE41306 - Liquid crystal display device having rubber bushes for receiving ends of a fluorescent tube and enabling connection of lamp cables thereat (2010-05-03),

2. RE41305 - Liquid crystal display device having a mold case and rubber bushes for receiving ends of a fluorescent tube enabling connection of lamp cables thereat (2010-05-03),

3. RE40130 - Liquid crystal display device video having signal driving circuit mounted on one side (2008-03-03),

4. RE38516 - Liquid crystal display with casing structure (2004-05-18),

5. 6580476 - Liquid crystal display unit (2003-06-17),

6. 6411359 - Liquid crystal display device having smaller frame area (2002-06-25),

7. 6411353 - Liquid crystal display device with its upper and lower cases clamped by crimping portions thereof (2002-06-25),

8. 6172661 - Low power driving method for reducing non-display area of TFT-LCD (2001-01-09),

9. 5946062 - Liquid crystal display device video having signal driving circuit (1999-08-31),

10. 5877736 - Low power driving method for reducing non-display area of TFT-LCD (1999-03-02),

11. 5815224 - Liquid crystal display device having video signal driving circuit (1998-09-29),

12. 5805249 - Liquid crystal display device having video signal driving circuit (1998-09-08),

13. 5640216 - Liquid crystal display device having video signal driving circuit (1997-06-17),

14. 4985698 - Display panel driving apparatus (1991-01-15),

Title: Innovations of Kaoru Hasegawa in Liquid Crystal Display Technology

Introduction

Kaoru Hasegawa is a prominent inventor based in Ichinomiya-machi, Japan. He has made significant contributions to the field of liquid crystal display (LCD) technology, holding a total of 14 patents. His work focuses on enhancing the efficiency and design of LCD devices, making them more compact and lightweight.

Latest Patents

Hasegawa's latest patents include innovative designs for liquid crystal display devices. One notable patent describes a liquid crystal display device that incorporates a mold case and rubber bushes for receiving the ends of a fluorescent tube. This design allows for the connection of lamp cables, which contributes to a reduction in the size and weight of the device. The patent outlines a configuration where the terminals of video signals are extracted to one side of the display panel, facilitating a more streamlined design. The device includes essential components such as a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector, showcasing Hasegawa's commitment to advancing LCD technology.

Career Highlights

Throughout his career, Hasegawa has worked with notable companies, including Hitachi, Ltd. and Hitachi Device Engineering Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of display technology. His contributions have been instrumental in the evolution of LCD devices

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