Company Filing History:

14 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

4 out of 16,453

Panasonic Corporation

patents

Years Active: 1999-2010

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7796098 - Light emitting device (2010-09-14),

2. 7652803 - Driving device of light source (2010-01-26),

3. 7512301 - Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning direction (2009-03-31),

4. 7463275 - Light source for image writing apparatus and production method for light source (2008-12-09),

5. 7249324 - Electronic paper file (2007-07-24),

6. 7224497 - Light source of image reading apparatus and driving device of light source (2007-05-29),

7. 7154452 - Electronic paper, electronic paperfile and electronic pen (2006-12-26),

8. 6945632 - Ink jet head and ink jet type recording apparatus (2005-09-20),

9. 6933487 - Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning direction (2005-08-23),

10. 6906705 - Electronic file with flexible display medium (2005-06-14),

11. 6891328 - Light source for image reading apparatus and image reading apparatus (2005-05-10),

12. 6844888 - Image writing device, light source, light source unit, microlens and fabrication method for microlens (2005-01-18),

13. 6717751 - Image reading apparatus (2004-04-06),

14. 6497477 - Ink-jet head mounted with a driver IC, method for manufacturing thereof and ink-jet printer having the same (2002-12-24),

15. 6268600 - Linear illumination device (2001-07-31),

Title: Tetsuroh Nakamura: Innovator in Light Emitting Devices

Introduction

Tetsuroh Nakamura is a prominent inventor based in Takaraduka, Japan. He has made significant contributions to the field of light emitting devices, holding a total of 18 patents. His innovative work has advanced the technology used in various lighting applications.

Latest Patents

Nakamura's latest patents include a light emitting device designed to feed a reverse current to defective structural parts of light emitting elements, such as organic EL elements. This device operates without using the power supply voltage as reverse bias. It features a capacitive light emitting element that emits light upon the application of a DC forward voltage. The reverse current can be directed through a low-resistance defective structural part by connecting both electrodes of the organic EL element to the earth after stopping the DC forward voltage, effectively discharging residual charges.

Another notable patent is for a driving device of a light source aimed at extending the life of the light source while ensuring uniform illuminance intensity in the main scanning direction. This invention is based on a light source for image reading apparatuses, which consists of film layers laminated on a transparent substrate. The design includes a transparent electrode, an area light emitter, and a metal electrode, emitting light by applying a specific voltage to these electrodes.

Career Highlights

Throughout his career, Tetsuroh Nakamura has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has contributed to his expertise in developing advanced light emitting technologies.

Collaborations

Nakamura has collaborated with several talented individuals in his field, including Masaichiro Tatekawa and Kouki Hongou. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Tetsuroh Nakamura's contributions to light emitting devices have significantly impacted the industry. His innovative patents and collaborations highlight his dedication to advancing technology in this field.

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